Exactly what I needed to know and fast, Thanks!! That really saves me some diggin' around time!
I was hoping to do a lot of work - new tires, check brakes, repack (replace?) bearings, change plug, change battery, check lights, setup hitch and brake controller - and bring her home all in one day. It's slowly starting to sink in that I should allow myself at least
two trips. (She's only 1.5 hours away, I'm just anxious to get her home!!)
Also, after I looked at the diagram of the existing plug, I don't think there is an adapter. (not at the mega-mart anyway!) It only makes sense that they're designed to allow connection between the different "new" style connectors. (i.e. 4-pin flat, 5-pin flat, 6-pin round and 7-pin round, if I remember correctly?) That way somebody with multiple vehicles/trailers doesn't have to convert all of them to one style. I doubt if there is much of a market for "old Airstream" 7-pin to "new" 7-pin.
Anyway, Thanks again!