My best advice would be to be certain the Airstream will be enough room for you. That's a lot of money to spend to feel cramped after a couple trips. If you haven't done so already, check out a couple comparable length trailers WITH slides, it can make a huge difference. A large breed dog (I have a Golden Ret.) takes up lots of floor space!
As stated above, if you are looking to do some remote camping you'll need a good generator. Budget a couple thousand for a good brand that can run your a/c ect...
Good luck, have fun !!!!!!
