Technique/Instructions for positioning a BENBO ??? (Uni-loc similar)

Can anybody describe (or point me to instructions or manual) for the proper way to wrestle a Benbo/Uni-loc into position without losing your camera or a lens?

I don't have one yet, but I have been doing my research and I have found a closeout Benbo 1 with multi-angle head at a ridiculous price. Yes, I know about the Benbo drift problem, etc. but I also know there are modification workarounds (and I work at a machine shop). I plan on putting a Acratech ballhead on it eventually, but will work with the multi-angle head for now.

So what I need is the proper technique (the one that doesn't require three hands). I can guarantee that one of them is holding the camera/lens at all time until everything is locked down, but beyond that I'm a little fuzzy....

TIA for any responses!

DCA