Save Sergeant York’s Machine Gun!

Dave Hardy says there’s a chance a piece of our history may actually be destroyed.   I know there are a lot of military museums out there, like the Ordnance Museum at the Aberdeen Proving Grounds in Aberdeen Maryland.  Could one of these museums take an NFA firearm that’s not registered under the military exemption?   I would hope a way can be found to save this gun.  Registration would, of course, be preferable, but absent that, I would think there are other ways to save it.