Loom that goes into the chassis.
I don't know that its the best way of doing it, but it certainly works for the guys that do chassis swaps near me, they put straps through the windows of the door, out the other side and up onto the forklift.
I think they also bolt a piece of wood in across the front of the wings to act as a support to stop them flexing as the grill assembly is not that strong.
They then cafefully his the shell on 6 tyres (the shell is quite weak relativley speaking between the bulkhead and tub because all that holds it really are the inner sills and the roof at the top" so take care when seating it that you don't twist any of it, mind you it will twist right back but its not worth it.
