On Stan's design the pivot stays still, so when you jack the car up at least 4 feet the pivot will be close to right ... and then the car will be high enough up that it can spin around.Stan
Am I missing something here ...?
Using the GTV as an example, you wheel each section into position, bolt it in the bumper mount holes, loosen the locking bolts and jack the car vertically ... maybe 2 or 3 feet and then lock the bolts.
Then what ?
It doesn't appear that you will have enough height to allow the sides of the car to clear the ground and stand and still rotate ... and if you do have the clearance, the weight of the car is not centered at your axis of rotation. Even if you managed to group enough bodies around the car in the correct positions and succeeded in rotating the off-centered weight, at the point that the car was inverted - it will be 8 feet off the ground !!!
BTW: Be very careful putting shells/cars on to rotisseries ... I ended up dropping my shell when we were putting mine on. Thankfully it landed back on the jack stands AND on the jacking points ... but it was very close to hurting all involved and being seriously damaged.
I'm also amazed that rusty 105 series shells are still strong enough to lift via the bumper mounting holes, but lots of people do it. My car would have stayed on the ground, at least when I started working on it .