Got out to the shop tonight, finished caulking the roof line before it got dark, so that should end water penetration during high winds and rain.
Once that was done, I cleaned up both of the frame motor mounts I cut off and then found a piece of 1/4" plate that I cut pieces off of to make the mount to frame connections.
Got all the pieces cut off with the plasma torch and then cleaned them up with the grinder and then welded them onto the mounts. Hopefully tomorrow night I can get my son to help me and we can trial fit the engine back into the frame with these on and get some better measurements if we aren't fighting it moving side to side.