What's a reasonable price right now (considering tariffs) to replace the upper (larger) back window on a 2012 Prius?
I've had friends who have added windshield replacement coverage to their insurance policy for $50 and then got it fixed and then canceled that part of their policy. Also go around to auto glass places and get some prices. It might not be as expensive as you think. If it were me, I'd wait for Pick n' Pull / auto wrecker's regular sale they have on doors for $50 and buy the whole rear hatchback and replace it entirely because It's just some wires and two big bolts and the struts.
It's best to call around to the different shops and get a price first hand. Maybe a few windshield replacement companies, like safelite?