There are already electric pickup trucks intended for hauling. They are not cheap. But at least one of them can do a 35% grade with a full load at highway speeds. Just how far it goes I do not remember--but for "normal" driving it was over 300 miles fully loaded.
The tipping point for new technologies is often considered to be 5% market share. There are over 1 million BEV's on the road in North America--and new sales have reached about 2.9% market share.
I'd not be buying any oil stocks. (In fact I sold all my (meager) holdings in the last 24 months.)
I believe that a Hyundai Kona would make an excellent toad with the ability to power the "house" needs. Range is over 290 miles.