AVID FLYER question

A friend has an Avid Flyer for sale, I'm interested.
Anyone have any suggestions on things to look for, watch out for, or
suggestions in general? It's a Model C Speedwing with Rotax 532 with
"B" gearbox. Basic instrumentation, no radio, has lights at least on
wingtips. Low time, clean (he says).

What should I expect to pay for this? (I know, you haven't seen it).
I'll take one of our EAA Technical Advisors with me for a look over,
and it will come with a new annual.

Comments? Suggestions? Warnings?

TIA--Don