Dirtco,
This is fantastic. I don't have a 4Runner yet but working on my trailer plans. I have been thinking that a truck chassis would make an excellent trailer. Especially using the tank for gas or diesel surplus.
I am a senior machinery engineer for a major oil company and I work a lot with our instrumentation technicians and one of the rulers of measure is their ability to wire, bend tubing and make it look neat and easy to work on...let me say, you pass with flying colors. Your work looks great. I have added this thread to my home screen as I want to follow you and ask questions down the road.
My trailer will be more for hauling guns to the range, day camping and for bringing supplies to the state parks for BBQs. May get into camping later.
I am planning the 12v system for lights, converter and also an on board tank for potable water for cleaning and washing. So my set up will have some pumps and plumbing.
I would like to see a wiring diagram of the system. What I am curious about is the interaction of the truck battery and trailer battery. I assume the shore power is there for charging the trailer battery and running the converter from AC to DC. Grounding is something to really consider. I am around 4160v and 13.8Kv a lot, electricity is something to respect.
Great work...
Richard