I'd PM Rick - RH77. He's got one, and will have lots to say about it, if you can hook him.
Here's his thread:
http://ecomodder.com/forum/showthrea...ght-11780.html
Not sure if that helps.
All else being equal, I'd get the Prius for its EV mode, mostly for future powertrain hacking possibilities. But you've got your reasons! Fair enough.