There are some VERY GOOD AND PROFESSIONAL engineers out there who are well under 55 years old. BEFORE you by any aeroplane get a qualified engineer to report on it and get his specific terms of reference settled before repirting. If you then don't like the report leave well alone. A little money spent up front can save agreat deal in the aftermath of a poor buy. I am not an engineer but truts my life to the guys that look after my aircraft and would not nuy without their specific approval.