In 2000, Ford had an EV Ranger, and Chevy had an EV S-10. Neither with great range, of course. It should be easier to do with modern batteries. Attach the batteries to the frame under the bed, put the bed on top, all engineering problems solved.
The F-150 Lightning is body-on-frame, so I know it's entirely feasible, but the same reasons Ford went with a unibody for the Maverick are probably doubly relevant for something like the Slate (cost and weight). I'm going to quietly hope they succeed with this and somebody (Slate or otherwise) makes a proper compact EV pickup designed to get dirty. If not, maybe the market for EV conversion kits will further develop and I'll just yank the V6 out of my Ranger and slap an electric drivetrain in it.
"Fruit of the poisonous tree" simply means the entire chain, the initial evidence that was improperly acquired and anything that was discovered based upon it, gets thrown out. If a warrant was issued to dump the full contents of your phone, and they used location metadata from your photo library to start determining other locations to search and got warrants for those, then that entire chain of evidence gets thrown out if the court finds the initial warrant for your phone was invalid.