Thanks for the suggestions, guys! Much more info to research, which I really appreciate!!!
I already have the T56. It was a trade up for parts I had for my Corvette, that I don't need anymore. Basically, I've got the 472, the car, and the T56 and I'm only $400 into the budget so far. I'm working on a website to get everything in one place, so when that's done I'll let everyone know!!
I'll have to work with my friend on the rules regarding what I can and cannot run (fiber bumper, etc.) just to see what's "allowable" in the comparison of street car to street car. Thanks so much for the help, now I have more questions to ask.
Thankfully, I've got a lot more track time than my opponent. Unfortunately, the main component of my track time has been in my MINI, which is a slightly different ballgame. But I've been on this track a bunch with NASA events and riding with other friends who do it regularly.
So now I'm off to research everything you've just told me! I'll come back with more questions soon, I'm sure!