Thought that's what you meant!
If it helps, we had one vehicle ...Navara....which dragged the Swan with the usual brake controller, redarc isolator etc and 12 pin plug.
After we collected the expanda, we decided to change vehicles so got the auto electrician to remove the brake controller, redarc etc from one vehicle and fit into the new one.
Easy job and not too expensive...not sure of cost but less than $200 I think and that was with extra 12v sockets added at the same time.
It was far easier than we anticipated and something you could do yourself if you know what to do.
I didn't!
Also, about 10 beers plus fit easily in the door of our 150l fridge.....I'm sure you could get more into your bigger model.
Just put some non slip stuff under the cans to protect the alum rubbing on fridge.
Have fun with your planning.