I hate to discourage anyone, but I think your rather stuck here, and you will need to live with out an aquarium.
I completely understand not wanting to discourage anyone. And I understand being stuck. I've been stuck here for a long time. I hate it.
What size tank are you thinking about, how often are you moving, and how long are the moves? Would the moves occur during extreme heat or cold spells?
A 55ish gallon set up would be awesome, but I feel as though that's a bit extreme for my very unusual circumstances. A 20 gallon is more likely at this point, assuming I can figure out a way to do it. As far as moving goes, they normally happen about every 6 to 8 weeks and average about 750 miles, but with the occasional long haul of around 1500 miles. I haven't had to go farther than that yet. When it's cold, I head back down south to avoid hard freezes. When it's hottest work is slowest so moving is normally avoided during June, July, and August. September always has a move date though. I can't say how much of a temperature swing a 20 or more gallon reservoir of water would get though. It does get hot inside the RV during travel days.
That's kinda why I'm thinking plants rather than the inverts I really want. Moving like that is a death sentence for inverts. The stress alone would wipe them out.
I have a few ideas that pop into mind
Those are some interesting suggestions. I will definitely be keeping them in mind.
I honestly think your best option is a terrarium instead of an aquarium.
I am considering that option as a back up plan. It would help add some nature and a bit of life to my otherwise very manufactured feeling home. There's just something about a tank full of water that I like. I've never really liked dogs or cats, but I have a soft spot for our aquatic friends.
I appreciate everybody's input. I didn't expect this to be an easy problem to solve.