Why on earth bother with AF-100. A hacked GH2 (or the new GH3) will outperform it easily for a fraction of the price and weight/bulk).
I just finished setting up a GH2 Nauticam rig with a couple of lenses and domes.
Had it in the pool the other night to test buoyancy.
Taking it wreck diving tomorrow. It is a great camera, and the lenses all fit the AF100.