Where to Start?

[86GT]

Thanks for the replies so far, they're really helping. I've got the Mustang Handbook, and I'm reading up. Unfortunately there is no driving school close to where I'm at, but I'm open to the idea.
My plan so far (advice is definitely appreciated on this):
Car - 86 GT T-top.
Kenny Brown Extreme Matrix System,
Koni Adjustable Struts and Shocks,
Eibach Lowering/Handling Springs,
6 Point Cage.

That's for the start of it all, after that I want to get into the driveline a little and boost the power. I've already got a set of Pony wheels, with 205-55 on the front and 245-50 on the rear.

Will 4-lug hold up for long in the twisties, or should I convert to 5-lug? Do I need to use 31-spline axles?

Sorry for the length, but I'm really interested, and even though money is really tight (I'm a college student), I'm still able to squeeze.. Thanks for the help so far.