EV's I know there are folks better versed than me in here

This sounds like an issue with logistics (ie: getting parts).

For low speed limited range local use where it can go back to a yard and charge overnight, electric is great. That fits in well with local delivery (fed ex) or city busses.

For RVs where most people get out on the freeway and do a few hours of driving then staying someplace with limited electric, we are a lot further away.