AAA will almost always bring you 5 gal of gas, free. At least my old California AAA does…

Hub motors today are simply not powerful enough and if you made one that is powerful enough it would weigh so much the vibrations coming from the road would tear everything apart.

Your largest obstacle is going to be the weight. By time you add enough battery to go very far you will be super heavy.

Now if you could mount the body onto an electric car chassis it might be an easier project to succeed with.