A friend of mine just had her '01 GT (with ~42K miles) declared as "totalled," simply because it rolled down a 75' embankment and bounced off a few things. She has offered to donate any working parts to my '98GT. I immediately thought "woo-hoo...free P.I. heads & cams!" I was also considering the upper/lower P.I. intake manifold. If these parts don't have damage from the accident, would it be safe to install "used" parts on my '98GT (with ~72K miles)? She did drag/street race this car quite often, and the only other engine mods it had were a K&N CAI and a Saleen chip of some sort. What should I be concerned about with respect to damage? Should I install them with the P.I. cams, or go with VT Stage 1 cams instead? On a '98GT with the heads/cams/intake being donated, and the labor being done at home, how much $ would I need to invest for gaskets and other relevant parts? Thanks!