Op, I wouldn't get to hung up on the type of blower you want just yet. Get the car and get a feel for it and you will get to exoerience first hand what a positive displacement blower is like. Think of a Cintrifugal supercharger like a turbo with a belt driving it instead if the exhaust gasses, and it has similar characteristics. I bought my Terminator when I had just turned 19. I had all the same plans for the car you did but after getting it I realized there was a lot more as far as supporting mods and basic bolt ons that added up, but made the car an animal by the time I sold it. Start looking into the basics first, have fun getting acquainted with the power, and look at the blowers for later on.
As far as schooling goes, at our shop we have two mechanics, both ASE certified, and neither went through UTI or any school like that. My best friend started out at 17 changing oil at a Ford dealer, then a Honda dealer who sent him through their entire program and he ended up being the youngest Mastertech for Honda at like 22. He said guys that came from UTI to their dealership were put in the oil change service center. There's always an exception to the rule but the overall view of UTI graduates in the real world of automotive service is pretty negative it seems. The plus side to having the manufacturer school you in their programs is that you dont have to pay for it! My friend was making $80k at 22 years old when he left the dealer with no college debt to pay back. He branched out to do what we are doing now but that past career has set him up for success.
This is why I made my statement about UTI. Not bashing it. But I would knock on doors talk to dealers start as an oil change guy and see if they will put you thru school. You will have Co-op and free schooling and not be in debt if you decide it isn't the career for you.