Not to throw a wet blanket on the party, but wouldn't it make a lot more sense to buy a (used?) 1DsIII first to see if that solves your issues?
Regarding the Pocket Wizard issue, if you use ettl, you will discover you are SOL. As for the goofy hot shoe, instead of getting an adapter for the camera, I got one for the flash and one for the PW transmitter. When I got the camera, I thought the hot shoe was the dumbest thing I'd seen. Hot shoes work, why fix what's not broken? After using the Sony hot shoe for a while I realized it's genius, even if it is proprietary. Including a memory stick slot instead of SD or two CF slots ... not so genius.
The Sony AF is definitely not fast, but it never misses. The only real surprise I've had with the camera is shooting fireworks has been an incredible challenge in the way the sensor records light, but I'll know for next time. A part of me is strongly considering switching to Canon because we have standardized on Canon for video production, the Sony hasn't really given me a good reason to switch.