OK, someone resurrected this thread and I got inundated with PMs about the tanks. I'm going to reply to every one of them right now.
The short story is: I don't have any stock (except for 1 tank, no mount) but I talked to the rotopax owner who lives near me and he's going to get me more--he said "hopefully today." (10/12/2012)
Look for my PMs everyone.