That story begins as, hold my beer, you ain't gonna believe this.............
Been there too but it easily eats up 2 hours or more. A few friends and a case of beer are cheaper.Maybe you should drop the engine, that's half of it if you include the exhaust. The rolling chassis will then be a piece of cake and the engine can go up on a two-wheeler.
sure, unless one falls down...500/4=125# each 500/3= 166# each....so as to advice, I've seen "sideways" and "advice" tends to careful. Avoid risk-save your luck for riding.4 smallish guys could pick the bike up and ccarry it up no problem
Or they could use hydrogen and only need 11500 cf!easy
take 13000 cubic feet of helium some plastic a few rolls of duct tape......
remember it takes 250 cubic feet to lift ten pounds so weigh everything and adjust the helium we dont want a repeat of "up"