I just bought a 2005 Toyota Tacoma 4 cyl, 5 speed, standard cab 4x4. It runs and drives excellent, and is in good shape other than a few scratches near the cargo bed. I recently discovered what appears to be oil in the coolant overflow tank and some dried coolant on the passenger side of the block that appears to be originating from the headgasket. I am 90% sure the headgasket is just starting to go, but is not completely blown and the truck still runs and drives excellent. It is a rust free California truck with 123k miles.

What is everyone's opinion on the value of this truck?

 

2500-3000ish?