$700 a good deal for Eaton Posi Parts/Labor?

[TIMSPEED]

I'll be getting an Eaton Posi installed prolly middle of next week, just wanted to see if you guys thought it was a decent deal.
That guy on Ebay (GearsRUs; Wayne Grubbs) said for $425 shipped to my door, he'd get me the Eaton Posi, & Install kit.
A local shop, who came recommended, quoted me $275 to install the posi.
Sound like a decent deal to you guys?
That guy on Ebay is a real class act, E-mailed me back right away, and was totally upfront with the pricing. (Thanks for recommending him, PhantomDually) The Eaton has the 400# spring pack inside it. (Which is what my friends said I want)