"Ever try to pull a twelve foot trailer loaded with tools with an electric car? You might make it ten miles before your recharge."
Bjorn Nyland tows a trailer behind his Model X. Likely a lighter load than what you are talking about, but you wouldn't try to tow your trailer with a Honda Accord either. It's not the right vehicle choice if you want to tow, but your full sized truck is not the best vehicle to run the kids to school every morning. Fuso has a couple of ET's, medium duty box trucks that would likely fit your needs and there is a company building a full size EV pickup fitted out for contractor's needs.