Thanks so much for your input! Ha, I probably should have been more clear. I realized the way I said that sounded pretty naive
While we are new to airstreams, my husband is a contractor, I'm from a family of tradesman, and my brother renovates trailers (though not airstreams). We are no strangers to plumbing, electrical, building cabinets, gutting bathrooms, creating kitchens from scratch, sourcing parts, crafting custom triple bunk beds, etc.
By calling in some "professionals" I simply meant he might be able to call in his plumber to save us some time or pay his company's mechanic to knock some dirty work out that we don't feel like doing... Because right now our biggest hurdle is not ability or necessarily money, but TIME. Babies and little kids have a way of doing that ;-) But we're in no rush. While having something we could have used right away would have been lovely, I feel better now knowing we can have more oversight into making sure things are done right and to our specifications rather than buying someone else's "remodel."
While I am the first to say, an airstream is NOT the same as a house, we're the ones who buy all those houses no one else will touch, make them wonderful and sell them to the types of people who love new, beautiful houses where everything works (and who probably buy new airstreams or pay $50K to get one renovated by someone else). Ha, as much as I WISH we could be more like those people because it would be so much easier, here we are living in our 7th fixer upper and buying an airstream that I'm sure will need tons of love, because it's the kind of thing that's just kind of ingrained in you. We're gluttons for punishment I suppose.
Now I just have to translate these skills to renovating an airstream
...And reading tons of these threads already from people who have chronicled the process from start to finish has been a huge help thus far...