Parts cars - hmm. No. When you get one for parts it's because it's used up. I spent maybe $100 on parts - I've yet to use them. Mostly the stuff to rebuild the front end - Steering knuckles, 9* caster blocks, 1 A-arm, tall and short caster block bushings, A-arm hine pins, caster hinge pins, wing mounts, extra eccentric bushings & a set of turnbuckles & ball cups...I think that is it. This is a far cry from an entire buggy which go for around what, $250? Ok, I'm missing shock towers - but if I break one, I'm buying Smoke'm towers for $20 each. I've replaced my front drive shafts with Spec R's - so I have an extra front set of those. Thsi thing is a tank, what else do you expect you'll need really?
BTW - Buy JC Wings - the stock wing is made of plastic only slightly thicker than sandwich bag plastic!
Side note - the new Proline wing being used at Cactus this weekend looks pretty slick too.