Yea I'm in the same boat, my Pat arrives sometime in the next week or two, (ordered it in late September). The dealer says 900 bucks for the complete package, scotchguarding the already YES fabric, undercoating (thick enough for soundproofing too, they say), and paint protection. One dealer wanted to install one of those little electric anti-rust boxes in that. Ziebart quoted me 750 tax in, for paint and underbody protection. Another 500 for an automatic starter (cuz it's a 5-speed).
I'm more curious about the rust warranty. You need to get the pat checked out at the dealer every 1 or 2 years (forget which) within a 60 day window or the rust warranty is out the door. They didn't mention a cost for the inspection. I doubt ziebart will be enough for the dealer to accept for warranty purposes, but if your car's protected... what do you need it for?
ALSO!! I heard that you should carry a jar of Vaseline, (gf may not approve seeing it in the glove compartment haha) so if you get a rock chip on the road you can smear it on for a temp fix until you can get some paint on'r. Wikipedia also approves the technique!