Jerry ,
No the plane is down in SC. N325 the same Person you bought your plane from. After more thought I think the rear turbo may be the reason that there is so much oil as it has never been overhauled!! The plane had a engine install in 84 and is not the orignial factory eng That is the reason for the heavy case question.
The rear vibration may also be the reason for the cracking case Do you think that getting a Harmonic prop balance would help?