Need some opinions guys. 1993 GMC light duty 2500 Ex-cab 4x4 105,000 miles. The other night the shovelers were driving this truck, thermostat stuck, this truck is not equiped with the "Idiot Light Option" that reaches out and slaps you in the face when it overheats. So the boys ran it to 260 degrees and burned up the head gaskets at least and maybe the heads.(I'm guessing the heads are cracked, it melted the the temp sensor in the head.) It still runs but very rough at idle. I was going to replace this truck in a few months anyway. Now, the question, What to do with it? 1) Replace the head gaskets?(1500) (2000)if the heads are bad 2) Long block it 1 year parts only warranty 2500 3) GM Goodwrench 3yr/50,000 tranferable warranty parts and labor 3500 4) Sell it as is, deduct the approx cost of repair from market value. Do you think I will be able to recoup the money fixing it when I sell it? It is a nice truck, has a salvage title, it was hit in the front when I bought it.