There was a gentleman here who was building a trike trying to use a Capri engine, and wanted to carb it. Same deal, the electronics were "too complicated" and they don't offer much in the way of tuning. He stopped posted when he could not figure out how to run the ignition system without the ECU. The posts are still here somewhere.
The Capri's electronics are about as simple as simple gets. The lack of tuning does suck, but it's not insurmountable
I have seen carb'd Miatas. But the setups cost far more than the whole car is worth. Twin dual side-drafts, proper carbs for a 4cylinder.
An old Rochester or Holley quadra-jet is not going to be a good match for such a small 4-cylinder.
Turbo'ing a carb is not the easiest thing either - I personally haven't done it, so I'm speaking from material I've read over the years. EFI is the way to go if you're looking for 'easy'
If you want to be different, and I mean really, really different just for the sake of being different (and that would really be the only reason) lol, then go for it