Shaun,
I agree with Rudy's advice on the crane particularly if manuverabilty is limited around the barn. We had the luxury of uninhibited flat ground access all around the structures. The bank barn reassembly required the flexibility of a crane, and we rented one. If you go the path of the crane, the rental company will most likely require to be listed as loss payee on your commercial general liability policy. One company we looked at also asked for "boom overload" coverage which most insurance companys will not underwrite for small companies. We found a rental company that did not require this coverage. Most modern cranes have computer controlled load limiting systems which make it nearly fool proof. I never operated one, and within a few hours had a bent in the air. (with a little sweat on my brow!)
When you get down to the point of frame disassembly, have plenty of long 2x4s available for "A frame" bracing of the bents. Once the rafter plates are removed, things will get pretty loose.
Brian
