I raised up the fuse and attached it to the engine stand. Wasn’t really that heavy. I lifted by the mounting plate then shoved the mast into the receiver with my knee. Now I have a rotating rotisserie! Disassembled the stiffeners from the front seat floors. Next I drilled out the nutplates that are supposed to secure the forward holes of the aft control mount. The ones installed by the factory were for #8 screws instead of AN3 bolts. Next I installed the right and left floor panels. I match drilled thru the aft control mount for the forward holes-then installed AN3 bolts and tightened them down. Used the holes in aft control mount to match drill thru the floor skin and longerons. Removed the floors and drilled and countersunk the rear holes just drilled for nutplates. Next I squeezed rivets to attach two K1000-3 nutplates in the longerons for the aft control mount (the forward holes). Had to use the gun and buck the rivets for the two rear nutplates. The F805B-1 floor supports (left & right) already had four nutplates installed, but no way to retain the F805F-1 spacers. So, I drilled out two nutplates on both the left and right side of the floor supports and then I drilled and countersunk for nutplates in the F805F-1 spacers. Used the pneumatic squeezer to set the rivets in all four nutplates. Some quickbuilders replace all eight nutplates, but it appears to me that all that is needed is a couple of nutplates to keep the spacer in place if the floors are removed.
Aft control mount bolted in front, ready to drill rear holes
F805F-1 spacer nutplates, and aft control mount nutplates set