Hello OKC. Welcome to Air Forums and the vintage Airstream hobby. There is a wealth of information from participants in these forums. It has been an immense help to me.
I have a 66 Trade Wind where I replaced a rotted bathroom floor, rebuilt the bath, installed waste water tanks, replumbed the entire trailer, and installed new converter and fuse panel. I did not rewire the entire trailer, but I did install a new circuit for the microwave or electric heater. And I wired in a See Level monitor for the waste water tanks. And then axles, belly pan, appliances, flooring, etc, etc. Did I mention replumbing the propane system? Way too much money!
Our trailers have aluminum 115 v wiring which is prone to corrosion problems. If you can, you are wise to rewire your trailer. I did not pull the interior apart. Except for the bath, mine is still original.
Does your trailer have one axle or two? Trade Winds are 24 footers with dual axles. The Safari is a single axle trailer. But both trailers are built very much alike. The owners manual is the same for both trailers.
Here is the owner's manual wiring and plumbing diagrams. I post them as they may help you get started. The key thing is to draw your trailer layout the way you want it. Do the electrical
12v diagram, and then the 115 v diagram. The 115 v circuits are mainly outlets except for the air conditioner. But you have to have an outlet by the fridge. My trailer only has 30 amps available, so you are not going to have gobs of power. Airstreams are designed to run from a
12v battery. Airstream rather invented the "univolt" system so all lights, pump, furnace, water heater, fridge, fans, etc run on
12v. Works good. You can boondock with all the comforts you might expect, e.g. water pressure, heat, light, stove, and a potty.
So spend a few hours and design what you want to do, and then route the wiring, fresh water and drain water plumbing accordingly. You will discover many constraints and limitations. I like to say there are tents, then teardrops, then pop ups, and then travel trailers, and then million dollar motorhomes. An Airstream is better than a tent, but it ain't a luxury motor home. I am impressed with how well Airstream designs their interiors and support systems. My bathroom is not near as clever as their bathroom.
David