Fly it!! , or at least put it on a test stand and run it
or sit on the couch and flip it while you daydream!
. What if you and your brother would have kept those models in the package in the 50's just because you could have made some profit by saving them till now? Its been said before, but A good memory will far outlast a few $ Hell, post a video of it running and I'll mail you a surestart for free! lol My opinion anyway Todd