Ok, got it mounted. Here are three pics...hope they aren't too big.
Good clearence, not too obtrusive, and not obvious from the sides...
Mount was nice and clean. I took the tripple tree off and used a drill press, then tapped the threads. I used metric of course (can't carry around two sets of tools). Works well....
The rotation point is about center, so it doesn't hang over onto my tank. It works really well...not too much room to get at my key though :[