These guys have been protecting and conserving helicopter history for over 30 years now:
http://www.helicoptermuseum.co.uk/
They are always looking for parts and new helicopters. The helicopters in the collection are all non flying exhibits and this is the Worlds largest dedicated helicopter museum with over 90 helicopters in the collection.
They hold an annual helicopter show attracting helicopters from all over the UK and military helicopters from across Europe. This museum is funded by the public gate and support from grants and all the gate proceeds from the helicopter show.
They would welcome any and all support from you guys.
The only other dedicated helicopter museum is in Germany.