The first thing I'd do is not spend any money yet. The second is to get out on a track and find out if you really want to do that. Assuming you do, 3rd is to read the hell out of these threads:
http://www.ft86club.com/forums/showthread.php?t=25485
http://www.ft86club.com/forums/showthread.php?t=38926
http://www.ft86club.com/forums/showthread.php?t=25494
If your serious about tracking these will be very helpful, and will provide a guide as to how best to spend your money. With only 2K to spend it will be real easy to spend it on things that make little or no difference on the track.