I have done a lot of work to mine as well. Mainly a large solar set up with Tesla batteries l. My next project is removing the built in fridge and installing a window unit air con. But if you wanna exchange info that we have learned feel free to shoot me an email email@example.com for the slow response. I am going with an on demand hot water heater ,propane fired .it will be mounted on the outside in a box . a diesel fired forced air heater . an ARB 50 liter fridge . new electrical mostly 12 volt . if you send me an email I can send some picture . i have made a lot of changes to the suspension and body .