Check out the following YouTubers:
Explorist life (victron ambassador); https://youtu.be/sEW-ZaOOlq0
. Mostly does 24 volt builds, but discusses 48volt systems in a few vids.
DIY Solar Power with Will Prowse; https://youtu.be/YcKO4ZhjJlk
. Mostly does 48 volt stationary systems, but has multiple RV vids.
. There’s a good three part series about an epic 48volt system.
The JayYo Nation; https://youtu.be/dvCDksDwP-Y
. Good 48 volt build.
Enjoy the vids and good luck with your install! Please keep us posted with your progress.