Sounds like great advice, I'll have a look around and see if anyone rents Airstreams on the Rock here. Have gone back now and checked quite a few sites to be sure about the dry weight of the trailer we have in mind, and it appears that it is 2800 lbs., not 3200, (there is no Airstream dealer here, so am checking with them by email for exact figures)...so that leaves a bit more cargo/liquids capacity. It's an Airstream 16 International Signature Series that we have in mind. Now my concern is that the trailer hitch weight is listed at 430 pounds and our RX manual says that 350 is the max recommended. Knowing nothing about hitches, can we "buy" our way out of that problem? Seems like 80 pounds is not that much but again, I'm a total newbie at all this, and sure don't want to damage the vehicle by overdoing it.
My trailering experience is extensive with ski boats and tent trailers, but not an RV like this.