[cashflyer]

If it's been sitting since 1983, then it probably hasn't had the AD's done. And IIRC, there was a pretty expensive one that had to do with the props or prop hubs.

edit: I went and checked.
There was a prop hub AD that may have required replacement of hubs made before 1983 (within a certain SN reange). This AD didn't come out until 94, so it would not have been covered in the 1985 annual. But... it also looks like Hartzell has several methods of compliance that do not necessitate replacement of the hubs. DISCLAIMER: Although I am an aircraft mechanic, this is not my area of expertise. Ask Tim Hancock.... he would probably be able to tell you more about this issue.

And one more piece of advice. The old addage about an inexpensive Porsche is the most expensive one you'll ever own.... well it applies to planes as well. (x10)

I've been told a well sorted 310 should bring about 3 times the price you mentioned.