Just an update, the National Warplanes Museums PBY is still at the museum in Elmira NY. So is the C-47/R4D.
I beleive the NWM still has quite a few aircraft that they actually own. They have a Mig 17 that had its engine tested and seems that it will soon be flying!!!

This information I got when I went to the WOE airfest a couple of weeks ago.
In fact, here she is. The NWM's Mig 17 in Polish markings from 4 weeks ago!
Enjoy,
Nathan
For all your National Warplane Museum/Wings of Eagles information!