Interesting site. I shall have to see how many from our Rgt Musuem have been listed yet.
One thing to consider is the dewated ones. There must be lots more then usuable ones.
Funny story to relate about dewats.
Awhile back we had some smart MP's (aren't they all) come down to our museum for the annual check up. They had a list of things that had to be followed no matter what. One of them says to our curator, "All firearms must be dewated so that they cannot be fired, etc, etc." Our curator replies that we only have to "disable" them. Blank look on both MP's faces.

Finaly after an awkward moment of silence one says "my list says dewated so that they cannot be fired, etc, etc" Curator replies they have been "diabled" and not "deactivated" MP's have blank look again.

Finaly one says "whats the difference" still

Our curator replies "that by disabling them they cannot fire but future generations can put them back together to see how they fire" MP's still

Our curator then says "let me put it this way, if I shoot you in the knee cap YOU ARE DISABLED, if I shoot you in the forehead (puts index finger on MP's forehead), YOU ARE DEACTIVATED" MP's still

but leave us with the promiss of getting back with a final yes, no. its been over 4 years and they still must be trying to figure this one out.