Are there any good heavy duty electric scooters for those 7'2/450lb?

I love hiking, but more and more these days they are closing old parking areas at trailheads and making people walk miles along a closed road just to get to the trailhead. I am seeing it more and more. My knees aren't what they use to be so if I could keep an electric scooter in the camper to use when traveling, that would really help.

TIA!