As has been previously posted we have all gone through this as younger guys. Though if were 16 again and had the internet I'd never leave the house!
My advice would be to speak to an engineer before deciding on anything and get some feedback as to what is allowed and what costs you are looking at.
You don't want to start spending any money unless you know you are on the right track.
You only have to look on eBay at all the unfinished projects from people who didn't do enough research before they started.
Not trying to dissuade you but would hate to see you spend a Sh%t load of money only to find you can't drive the car the way you want.
Good luck,
Matt