Doug:
This is what I would do again (as I did for my Cobra) call these guys:
https://www.carchex.com/car-inspecti...FQ6f4Aod-zgA0w
ensure that the owner allows this and include a road test, if he does not agree to this, I would walk away period. if he allows this then you can be more confident to make an offer. Start low he is asking $36K, start at $30K and work your way from there.
I wish you good luck, if you have any questions, please feel free to ask away.
Sincerely
Lou