Thanks for the welcome -
Drove a round trip total of 620 miles this weekend - 320 of that was towing the trailer. The Airstream is nicer than expected - very clean and well maintained. The only items it needs are a new crank handle for the TV antenna, and a new fan for the bathroom. The rest of the trailer is very, very clean and looks like it was rarely used. I took apart the stove to clean it and did not find a crumb or speck of grease stain anywhere - and the fridge/shower, bath, etc. are all spotless. There are a few stains in the carpet - and there is a couple of minor scratches/dents - but for a 10 year old trailer it is in far above average condition. We intend to replace the carpet with either a nice linoleum or bamboo flooring within the year.
I need to put new tires on it and repair the two items noted above - and then it will be good for now.
As for tow vehicles - I have a 2005 Dodge 1500
4x4 with the 5.7 Hemi. It does have the towing package - and is rated for around 9K load. Exact specs are surprisingly hard to find from Dodge. The Airstream has a load leveling hitch and the truck didn't drop an inch. Plenty of power for pulling on the highway and up hills - The only negative is the mpg - I averaged spot-on 10mpg for the return trip. For me it is a balance of buying a new diesel (big $$$) - or just living with the low mpg on a paid for (and very nice) gas truck.