yes, I got excited about using a Prius when I saw this guy putting the front sub-frame, engine, steering, etc. into the back of a Corvair.
https://www.instagram.com/p/Cledu7mOo8M/
And he told me that the prius can be converted to EV easily. However I did a little reading and of course it's not "easy" and it requires using an open-source VCU that still has some driveability bugs to be worked out. And the Prius inverter needs a very high voltage to work best, something like 500v, but I don't recall the exact number right now.
The reason people use a Prius transmission and inverter in EV conversions is because the parts are dirt cheap and easy to work with. But there's still a fair amount of electrical engineering involved and so it's easier (but more expensive) to use a Leaf engine. Which is what I would probably do, but I'm sharing all this info about the Prius in case Bill want's to make this project take even longer