FYI... I was checking out LKQ in Monrovia,CA today and noticed that they currently have a white 2005 in the lot which had been converted to run on Hydrogen for the South Coast AQMD. Sort of a proto-Mirai. Have a gander at the pictures, there is one (sadly, more would have been nice) under the hood, and it looks pretty different: 2005 Toyota Prius Used Auto Parts | Monrovia
I'd guess the hydrogen tank has already been removed? That's probably a high value item that didn't make it on to the lot with the rest of the car...
I would imagine so should have been located in the back somewhere Not sure how much value it would be I mean it just a tank that can take gobs of pressure but yeah I imagine they're quite costly and certainly would be limited in size in a Prius hell I was just reading a thing the other week where it cost $459 to fill up a clarity something like that I thought it was a joke