https://www.edisonmotors.ca/edison-pickup-kit
Kit to convert solid axle pickups to diesel electric hybrid, kind of a universal kit that will be up to the installer to retrofit to a person's specific truck. Includes a diesel generator, front and rear E-axles for 4wd, batteries, and control doodads. 500hp for 4wd, 350hp for 2wd. Supposed to cost ~1/3rd the cost of a new pickup, but he doesn't say if that includes installation or not. $250 to reserve a kit right now, projected availability September 2024. Sounds like for now the kits will only be available to certified installers, not for DIYers.
Chace says the batteries go in a toolbox in the bed, but where they actually go would be up to individual installers and owners to decide.
I'm definitely interested, probably going to reserve a kit.