Looking to sell my 1991 FJ80. Just not sure how much to ask for it. It needs an engine rebuild/new engine. Compression test came back showing blown #6 piston. I have taken it to two mechanics. The rear passenger tail gate/fender is missing from an accident years ago. A/C is out. It has roughly 280k miles. Other normal wear and tear. Question is whether I should spend the money to replace the engine or just sell it. Thoughts?