I don’t see this as being particularly realistic for 1/2 ton owners. Most 1/2 tons I see are pulling 25 foot or smaller travel trailers or equipment trailers weighing 6000 or 7000 pounds. The coming Ford Electric half ton, the Tesla Cybertruck and the Rivian are all electric 1/2 tons that will do the same job with much more power, virtually no maintenance and can be charged at home or at the shop. There are a lot of grocery getter half tons around here but also a lot of contractors. I can’t see a contractor choosing a gasser/hybrid that can’t be plugged in over an electric once 2022 rolls around. The operating costs of the electric would be a small fraction of the operating costs of anything with a tailpipe.
Jmho.