If I'm getting one it's going to be this badboy 
https://www.specnext.com/product/zx-spectrum-next-accelerated-computer/
That one looks like a winner!!
Sadly I was never really into the Speccy, not very popular around here, more C64, Atari 800XL and the Amstrad (Schneider) CPC464.
I was never into it until I joined RVG. Still haven't played much of it but have and emulator and all the roms. Am slowly getting a feel for all I'd missed and want that machine bc it looks so AWESOME! Having the 'real' thing has a massive appeal to me.... all this time later.