Thoughts on putting a Z31 on a rotisserie

To restore my AE, it would be sweet to be able to de-rust and properly restore the underside without hours of laying on my back with sh!t falling all over me.
The areas that require welding would be easily accessible. Having 3 Z's needing restoration, it'd be a tool that would be
used more than once. I know this would be a big project, but a usefull one.

They are pretty simple and one could theoretically fab one with 2 off the shelf heavy duty engine stands and some square tube.
I was thinking engine stands because they have the pivot mechanism, but lack height adjustment.
The base would have extensions welded/bolted for stability.
Here is a DIY one i found: http://www.mts.net/~hpokrant/Restora…Rotisserie.htm

The question is, would the bumper mounts be sufficient supports rotating the chassis 90deg. Assuming the unibody area
for the bumper mounts are rust free. The only real rust is in the rear quarter panels and rear lower rocker panels.
The frame rails are crushed a bit beneath the footwells but still sturdy with only surface rust. Maybe i'd have to remove
the bumper mounts and make my own brackets…or just get some from the junkyard and weld them solid. ::tilt

I already have the engine and trans out, also the nose and front fenders
I think the additional things to remove would be:

F&R suspension (weight)
fuel tank (obvious spillage, weight)
seats (weight)
rear bumper (mounting access)


Thoughts?