Need help figuring out additional circuitry - 12/24/120 volt

[captxmas]

Thought I posted this but I don't see it. Please excuse me if it comes up as a second post.

I search and could not locate what I've been needing in old postings so.......

I am looking for help in locating a simple drawing explaining how to hook up some components.

I want to utilize the 25amp power lead supplying the radio plug box on the rear wall/passenger side of a 710K to:

1. provide power to a 20 amp 24-12 volt power converter
2. Provide 12 volt power to a 3000 watt/ 120 volt inverter ( which I never expect to use maximum load) for computer, small compressor and or coffee pot etc.
3. Charge 1 or 2 12 volt "house" batteries when the engine is operating
4. and charge batteries via solar panels when engine is off.

As I read this I understand how the drawing might not be so simple. I think I understand the requirements for the 12/24/129 output side but how does one integrate the charging side of the equation.

captxmas

Thanks in advancde for all your knowledge and I enjoy learning from you posts on a routine basis.