Greetings from Ontario Canada. Been a WBCCI member for about 6 years and own a 74 International Ambassador which is 29' long according to the serial number.
We have camped all over the place with it, and been to one International, one Regional (2) and a slew of unit rallies. Ontario unit is great in that you can participate as much or as little as you like and no one gets hyper about it. Have some really interesting people in the unit and it's a good thing as MS would say.
We haven't done a lot to our trailer, except for repairs to bearings, brakes, replacing tires, fixing the down curve when I hooked a cement barrier with the side of the trailer, replacing the hoist, re & re roof vent with a fantastic fan, replace the antenna, replace a few window blinds, replace the mattress on the mid gaucho with a full spring mattress 3/4 width, replace the stripe around the lounge and the bath with a blue webbing, install various hooks, replace the 8 track with a cassette player radio combi, and tear out the old stinky orange carpet and replace it with roll flooring.
There are some pictures of our Airstream adventures at the following link:
TinyURL.com - shorten that long URL into a Tiny URL