Looking for an Ann Arbor Ambassador terminal

Well, it's been a good couple of months, and I've managed to acquire a couple of things I've been looking for for a long time. One elusive bit of hardware that I'm still trying to track down is an Ann Arbor Ambassador terminal. Unlike my "big" terminal grail (Tektronix 4010/4014), I've never seen one of these on eBay. I haven't seen one at all in a very, very long time. It probably doesn't show up simply because it's really not all that interesting from a historical perspective. Also, I'm not so sure they were very reliable. It's an ASCII only terminal, no graphics. I don't believe it's VT100 compatible. But it's got some neat features, it's fast, and has a very nice keyboard. So, does anyone even have one of these? I'd definitely be interested in acquiring one, but even if you don't want to part with it, it would be nice to know that there are still some out there. -Ian