cheapest i found was that site i posted for good epoxy primer/black base/clear was about 300 by itself. they give you the activators and such with it for the 300. so im looking at another hundred at least for sanding junk, tape, etc. im not going to be able to convince the wife of that even let alone how much ppg and stuff like that costs, they were double on tcpglobal.
as far as the gm paint what i remember was the "scientific" test,the tech put a 2 or 3 inch piece of masking tape on the surface and a huge chunk of paint would come up when they peeled it off. saw this on a few people i knows gm'*. if nothing came off you didnt get a free paint job. to long ago to remember if the primer was still there but im leaning toward yes.
1998 Bonneville SSE
2007 Monte Carlo LT-KYB, Clarion, Polk audio, Kicker
1999 Yukon SLE-KYB, Air lift, Reese dual-cam, Tekonsha
1987 Firebird-355/th400-nothing stock