Couple of things to consider when selecting your engine:
I like the ideas on here. Three deuces can get your blood flowing, so can big cubes fuel injection. But are you able to work on multiple carbs and OBD set ups?
You'll get the car back in running condition, ready to drive and blast and have fun with it, but two, three, five years down the line when the car needs work are you going to be able to work on it yourself or have to pay the price to someone who can?
Yes, they have some slick laptop set ups for aftermarket fuel injection/COP set ups going into our older cars, but buying the hardware is only 10% of the battle. Knowing how to read the PIDS and translating the data to do the necessary repairs is the other 90%. And your talking programmable PCM's, so being able to take that into account while making those necessary repairs is going to add into the frustration.
Now, if you can't do it yourself, then you're going to have to pay someone to do it for you. Got someone in the area who knows how to play with the programmable stuff?
Then you get into multiple carb set ups and most guys look at them, as far as tuning, like the damned things are going to jump off the intake and bite their heads off. If you can't work on 'em, then you're having to take the car to someone who can, and these days finding a mechanic who even knows what a carb is is like pulling teeth, let alone putting three inline.
I'm not trying to be a downer, here, but one of the things about dreaming big is dreaming within capabilities, too. It's fine to think about the here and now, but try to think about the later, too.
As far as opening this thread, thanks for including the site in your dreams. I'm honored.