I bought all my paint from tcpglobal.com and I used Restoration Shop urethane basecoat/clearcoat system. The colors are:
#2101 Sterling Silver Metallic
#2506 Electric Blue Metallic
#1901 Jet Black (Gloss)
If you go with a single color you can get a ready-to-spray kit for around $230 that includes 1 Gal. BASECOAT COLOR, 1 Gal. REDUCER, 1 Gal. CLEARCOAT, 1 Qt. HARDENER, Sticks & Strainers.