I started on the electrical closet the last few days. I’m going with a fixed panel on top to mount the switches and a door down below. I’m going to add in a shelf right above the batteries. Before we all hit the road I’ll replace those batteries with some AGM batteries so I don’t have to vent outside.
So I made the top bunk a bit to high, To late now. The kids still loved it. 
Starting to frame in the electrical closet 
Going with a fixed panel up top and a door below 
Painted and a few things installed. Still need to wire a few more.