I have an con. 85-8 that has been setting for a number of years, has been oiled a few times. Thinking about selling it along with the prop. Was wondering how much can be told about the inside of the engine with a bore scope or would it be better to pull a cylinder. The engine only has about 500 hr. Smo and aircraft was grounded for a cracked spar. Any thoughts on what should be done would be appreciated. Thanks for any help Steve