Given the type of car, i think i'd be looking to see if their is an owners forum or club. if you are really lucky, there may be a member not far away who would be willing to have a look. Failing that, a forum/club member who can tell you exactly where to look and what to look for. Yes, i know you can get AA inspections, but with a car like this, i'm not sure how they would assess it. But, at the end of the day, if you are unsure yourself, an AA inspection would probably be worth the money, and certainly better than going by your own assessment.