Buying an experimental that has not flown for years.

[martymayes]

This one has a 618, and it is at 310 hours. I have read about them running on condition much longer, but I want to plan for a 0 time overhaul unless I see a very convincing argument that it is in good shape. Now I just need to figure out how much that would cost, or if it is even an option (something about crankshaft replacement has me worried).

I'd fly with that engine and I'd be tempted to push it along for another ~90h which would be a lot of flying. As long as you don't run it until it disintegrates......
Despite rotax discontinuing the 618 there is still good parts availability. Can still buy a new crankshaft ready to drop in for $1500. A rebuild is usually 3/4 that amount.

Two-strokes can be ornery at times but for the most part they are easy to maintain.

[Bob H]

Structurally, you want to determine condition of glass relative to UV exposure or weathering. If plane was exposed to elements/sunlight, the resin of the laminate can be degraded. Usually shows up as powder under fingernails if it's bad. Degraded structure is hard to repair short of new parts. The hard choice is deciding how much badness there is when it's partially effected by UV. Is it surface loss or deeper into laminate? You might have to scrape away thickness to get into uneffected material and because of unknowns, better to keep away from UV exposed structure.