Id be building a basic tube plenum and using the standard throttle body and management until I could afford the move to Mtech or other aftermarket ecu.

I see no sense in taking an efficient, reliable modern engine with multiple limp home strategies and excellent fuel consumption and fitting a fuel metering method akin to a grumpy leprechaun with a bucket.

If you do choose to use some 50 year old technology on it, how are you going to manage the ignition? I suspect by the time you pay for an ecu and loom to do that, ignition mapping and carb jetting you'll be 9/10s of the way to the proper solution.