HR Neptune Coach Battery Wiring

[Honda496]

Ok Newbe to the forum and Motorhome world, So I just bought a 2011 Holiday Rambler Neptune that had a battery fire and melted the house batteries and the wiring in the compartment. I called so see if I could get wiring diagrams from the manufacture but I was told since monaco was bought out years back they did not keep any of the older model information. I can figure out alot of the larger guage wires but there are some small wires that I cannot tell what they went to. Im looking for any diagrams or detailed pictures of that compartment, anything will help

Thanks Aaron

[WinnieView]

Typically the steps and jacks are hot wired to the coach batteries.