Hello Dan,
There doesn't seem to be a bunch of "supercharger" talk from what Ive seen on this board. Not to say someone wont jump in and give you some direction with your questions eventually. This isn't the busiest forum on the internet, but the people and info is very good from what Ive gathered. And a little more info might make it easier for others to offer some insight.
For example-
What is the budget for this? What do you have already? What motor do you plan to do this with? Is there a horsepower goal you have in mind? Is this for show or go or both? Is your car stock frame? What transmission and rear end do you plan on running? Street legal or track legal or both? Brake upgrades?
These questions are just off the top of my head that might help you get a positive response from forum members here.
I can only speak for myself, but if I wanted to build a supercharged G-body, I might ask myself if its wise or plausible at all if I needed "ideas where to start".
Hope this helps and good luck.
William