Just kidding.... if you're looking to save $$$ try ebay/NESBA bbs/WERA.COM bbs for some used track plastics. New cheapo sets you can get for ~$350$-400, midrange ~$600. Check Armourbodies (NESBA sponsor). Good stuff + NESBA discount. Gonna need a fairing stay, Vortex, probably ~$150
As far as improvements, go with some steel braided brake lines, Vesrah brake pads up front (don't waste the $$ on lines/pads for your rear brake) to upgrade over stock. This might cost you ~$150.
Next, some good rubber!!! Pirelli Diablo Corsa IIIs (see
parts@nesba.com for prices) or Michelin Pilot Power 2CTs (my personal favorites). A set of either should run around $275-$325 depending on your source.
Outside of that, if it's an '08, you're really not gonna need to do much else until you get some track time on it. The next step is suspension, but wait till you get to the "I" group before dropping those $$s.
Oh yeah.... don't forget all the equipment to protect yourself!
Don't cheap out on safety gear!!! Make sure your helmet has been properly fitted!!! Get a back and chest protector, a GOOD set of gloves (don't get that ICON crap, b/c it IS crap), and boots. Leathers are BIG $$$, buck thankfully NESBA rents those at the track (reserve those in advance when you book your track day)
Relax, have fun, ask lots of questions, have fun, be safe, have fun, bring an open mind, and HAVE FUN!
Good times....