WOW dude, i could awnser all of your questions but their are so many, I have no idea where to start, You give me a single car and i wil do a memory dump. I would be here all night trying to tell you on all old school cars. I wil say this, 3tc's are awsome , rotarys in starlets are bad ass but over played, and RX3's are attainable, and any combination of these can be yours, you need to have an idea on what kind of money you want to spend and how fast you wanna go. and then i can give you an idea on which platform is best for you. Patience will be your best and most important attribute with these cars cause parts are a bit*h some times. Good Luck my friend