My next door neighbour has a buffing machine/wheel and helped me out there, he let me do the plenum myself, the hard part was actually getting it smooth before I started polishing. I think I spent about 2-3days just sanding it until it was smooth, but it was worth it. Did you need some stuff done? Let me know if you do, and I'll see if I can help.
Oops... almost forgot, Steve, I am more than happy to sell you the wheels....$26,000 and I'll throw the car in for free