I don't know about the He111 Nutty, possibly IWM as Mike51 suggests. However, the Ju52 has not been "disposed of", but has gone to a museum in Kent. Whether long-term loan or transfer of ownership I don't know, but it will be looked after.
The big problem most museums suffer is lack of space. Many of the test flight aircraft at Midlands are moving to storage for a very good reason. The space is needed to set up a display of aircraft for the 80th anniversary of "Chastise" as I mentioned above. If that isn't telling the public about the history of the RAF, and the courage of the crews of Bomber Command (not just the dams raid), I don't know what is. It's a work-in-progress at the moment, but a visit later this year will be well worthwhile to anyone with an interest.
Enough thread-drift, and back to the VC appeal. DONATE NOW!!