Hello from Colorado and welcome to the Airstream community. Harvey was a huge natural disaster affecting millions of folks. My brother escaped Irma in Florida and lived in his camper trailer for a few weeks.
At least you now have a roof over your heads that you can move around when needed. I have a 75 Airstream Overlander 27' that I am currently working on. Think of an Airstream, or any travel trailer, as a collection of "systems". The plumbing "system" is one you mentioned. Your trailer has fresh water plumbing, and waste water plumbing. It has tanks, valves and a pump. Your trailer has an electrical "system" with
12 volt DC wiring, and 115v AC wiring. It has a battery, a charger for that battery, fuses and circuit breakers.
You need to do a careful assessment if what works and what doesn't. You need to read and learn all about Airstreams. Here is a good book to start with.
https://store.airstreamlife.com/coll...am-maintenance
And you need to guard against getting overwhelmed. Try to make one repair or improvement on your trailer each day. Start with the important stuff.
David