So with some head scratching I came up with this orientation for the 3/4 BCX flooring. Going this way minimized the scrap and only left two areas that I need to reinforce with 2x4 back-up pieces.
And there you have it. Weighing in at 995 pounds of main frame. Now I will go to work building the elevator frame. With elevator frame I can better gauge the pitch of the roof to get the overhang that will work best to handle the winch placement.