Hi everyone. I have my eye on a 1985 GMC S15 diesel extended cab. Pretty rare little truck in extended cab version. The old guy that owns it said he still uses it to go hunting and short errands. However it was wrecked a few years ago so the front part of the truck is from an S10(wether its just the shell or more than that, Im not sure). The engine runs well but he has to start it with starting fluid in the morning. But after that, it starts easy. It has the original 5 speed however it will only shift into the first four gears. My question is what is a fair price, and what do you think the problem is with the engine starting and the transmission not going into overdrive? I'm thinking the engine is probably a fairly low cost fix, but what about the transmission? Any info is much appreciated. Thanks.