After converting 101 maps to the Jaguar, I figured it was time to post all my notes for posterity and as a backup. Also, if anyone else is interested in pursuing this extremely addictive activity, the majority of work will be done. The 'try and learn as you go' bs is taken out of the equation with this info. And mind you, that approach has cost vast amounts of time throughout the process. I'm pretty much a Jedi at this now and have broken the process down into a series of steps that help with efficiency to get those levels done in the least amount of time with the closest matching textures and least amount of lag so they play fluidly, given the Jaguar's weaknesses of writing many objects in a single area-which is commonplace for most of the maps found in the wild. While this type of extra decorative detail might be pretty on the pc, it's just not feasible on the limited console so ideas listed by importance are included to aid in whittling down the un-necessities to increase usability.

First, using neo_rg's Doom Level Hacking Tutorial to get rolling is a must. I stumble across this in December of 2016 and have been avidly using this info to create some of the greatest 12 map roms the world has ever seen. (and the only ones in existence 😛 )

After putting the info/tools in the guide to use and downloading the required apps, check out my quick reference notes to get it all set up as quickly as possible:
Install Doombuilder2_setup_1553.exe (takes forever while auto installing .net framework)

Install SumatraPDF (if you want to view the lesson pdf's)
Extract DOOM DATA to desktop
Open Lesson pdf #02

Open Doombuilder 2-Tools-Game Configurations
Click Doom at upper left-Click "Add resource"-Click browse (folder) icon and navigate to DOOM DATA folder on desktop, open Assets wads folder and double click ASSETS1.WAD-Click OK
Click "Add resource"-Click browse (folder) icon and double click ASSETS2.WAD-Click OK

Click Doom 2 at upper left and repeat the process. Click OK again to exit the Game Configurations dialog box.

Go back into Tools-Game Configurations
Click Doom at upper left and -Testing (tab) & navigate to gzdoom.exe in DOOM DATA folder
Click Doom 2 at upper left and -Testing (tab) & navigate to gzdoom.exe in DOOM DATA folder

Change settings to open maps in Things Mode: Go to Tools-Game Configurations-Modes and change "start in this mode" to Things Mode. Click OK

Set Floor or Ceiling texture view as default: Tools-Preferences-Interface tab: Default view: Floor Textures

NOTE: To switch between Floor or Ceiling texture views go to View-Floor or Ceiling

Enable auto drag when pasting: Tools-Preferences-Editing (tab)-Options-check "Drag selection automatically on paste"

Doom Builder 2 is now setup

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Install Notepad++ and click View-Word wrap.
Right click on a .txt file and choose Properties.
Set notepad++.exe as the default program to open this type of file. Click OK
Open a text file and click Settings/Preferences/MISC and uncheck 'Enable Notepad++ auto-updater' to prevent accidental upgrades. Click Close

Create individual text docs from the posts below, named as the following, and open them with notepadd++ (which will open each separately in tabs for convenience):
Doom Builder 2 tips.txt
Doom To do.txt
Hacking a custom map into the Jag ROM.txt
Replace.txt
Things list.txt (if needed-is superseded by Doom To do.txt)
teleport quick ref.txt
Compression info.txt
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Download & run VC_RedistInstaller version 1.60 (for SLumpEd if needed).exe
Open DOOM DATAslumped_07/SLumpEd.exe to ensure it works.
Set the IWAD when prompted by clicking OK and navigating to DOOM DATA/doom.wad
Put a shortcut to SLumpEd on the desktop
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Open DOOM DATAPTv0.96 and put a shortcut on the desktop (this is a version of PT with a kick ass Doom icon I injected into ver 0.95 to give it some flare)
Open PT.exe and click Settings-Controllers
Set the directional keys to WASD and A,B & C to keys L,K & J respectively. Click Apply-OK
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Install 010 Editor.
For reference on the following, can open lesson pdf #7 (page 7).
Open a file in 010 Editor. Click View-Endian-Big Endian
(Can pull down and readjust the toolbar with the Endian toggle and Hex buttons for ease of use)

Install FileAppendSplitTool.exe

Open MAPCOMP folder and run whichever vc_redist.exe is appropriate (.x86 or .x64) then copy the 0 folder to C drive.
(Run the x86 version on a 64 bit machine if the 64 bit installer alone doesn't work)

Open Skunkboard folder and copy the Skunkboard folder inside to C via the shortcut
Open Skunkboard folder-Skunk GUI setup (Windows) and run skunkgui_setup.exe
Create a desktop shortcut

Run SkunkGUI and connect to the Jag. On XP, when the Found New Hardware Wizard prompt appears, tick 'Install from a list or specific location', click next & paste in C:SkunkBoardDriver
or, if using Windows 8: https://learn.sparkfun.com/tutorials/disabling-driver-signature-on-windows-8/disabling-signed-driver-enforcement-on-windows-8
  1 Hold down the Windows key on your keyboard and press the letter C to open the Charm menu, then click the gear icon (Settings).
  2 Click Change PC Settings.
  3 Click General.
  4 Under Advanced Startup, click Restart Now. ...
  5 After restarting, click Troubleshoot.
  6 Click Advanced Options.
  7 Click Windows Startup Settings.
  8 Click Restart.
  9 After restarting your computer a second time, choose Disable driver signature enforcement from the list by typing the number 7 on your keyboard. Your computer will restart automatically.
  10 After restarting, you will be able to install the drivers normally; however, Windows will display a warning message. When the warning appears, click Install this driver software anyway.

So, right click on Computer and choose Properties-Device Manager. Right click on CYPRESS EZ-OTG
Click Next to install driver
Click Finish and flash a rom to test