It's time to replace a door, a fender, tailgate and cut-out the cab corners on the truck. I need yalls expertise. I have a 1985 Silverado 4 wheel drive. There is an 1987 C-10 2 wheel drive with a straight/rust free body for $1000. If those body panels will fit my truck, I can save alot of money. OEM fender-$500, door-$580, etc, etc. Do yall know, if these body panels are interchangable? thank ya.