To piggyback on Stewart's response...
Just this year, Boothbay Railway Village (BRV) received a grant from the National Railway Historical Society to help fund the building of a new car barn - a replica of the car barn used by the original WW&F. It is much better to ensure there is a good building to store restored equipment in before worrying about restoring the actual equipment.
A grant from the NRHS is not easy to get, and it shows that this accredited organization shows respect and admiration toward the work that BRV has accomplished.
In short, anything at BRV is in good hands, and I would not worry about it at all.
In the meanwhile, I again invite you to get involved at your local railway museum. I think you'll find out a lot more of the answers than you expect. You would also be contributing to the overall cause of railway preservation.
-Ed Lecuyer