Grand Design 50 Amp Electric Scheme

[wjpatter]

I'm looking for information about access and what the switch panel looks like on the back side. I have shined a like into the crawl space but have never ventured into the abyss. Is accessing the back of the panel through the crawl space or does the panel pull out?? Does anyone have a picture of what that part of the world looks like?

I think I've seen a thread by @BjornF16 in 2017 that did what I'm thinking about doing, which is run 1/2 the coach off Shore power/Inverter power using a transfer switch and the other 1/2 unpowered without shore power. I think I read that, like a house, 1/2 the circuits are on one 120 VAC line and the other half on the second AC line and they are organized left and right of the main breakers.

Any guidance on how to get into the wiring will be appreciated.