Have you seen my electric samurai build called ZookEV? It may help you out a little. I’m running 33” tires and have run a few good trails such as the rubicon and Barrett lake.
https://www.diyelectriccar.com/forums/showthread.php?t=156817&highlight=Zookev
https://www.diyelectriccar.com/forums/showthread.php?t=156817&highlight=Zookev