All Tesla has to do is unveil the Tesla Truck with 400 mile range, 4 wheel drive, and customer option swap out rear boxes (regular bed, dump, camper, ??) and it will decimate the most popular and profitable segment of the American auto industry.
The only "ouch" for me there is that I figger I would have only 2.47 nanoseconds in which to sell off my F-350 in order to make room for that dream of yours, until the used car price of that Ford drops to negative numbers.....
I'd have to buy two! or three!
PS: the answer to your "??" is flatbed