Off the top of my head it seems like the cooling kit parts were about $200. As for using the Pagid Race pads on the street. I wouldn't recommend it for several reasons. Under "normal" driving you'll never get them hot enough to work properly. Using the pads cold will cause uneven pad deposits on the rotors. When you first get on the brakes when they're cold, they won't grab as well as the street pads. Could cause a problemin a tight situation on the street. And switching between street pads and track pads with Pagids causes it's own set of issues. Especially if the street pads are carbon based and the track pads are ceramic based. Many have used Pagid Orange's for the street with good results but they can be noisy at street temps. The OEM rotors with other less aggressive Pagid track pad's may be OK but I think I would check with someone at Pagid directly before doing that just to be sure. The Motul RBF 600 fluid is OK for street use but you should change it out AT LEAST once a year. As for the brake ducts on the street....I typically take the scoops off for street use to avoid having road debris thrown on to the inside face of the rotor. That may be a bit anal but that's just the way I am on some things. On a similar note...I don't have the cooling duct scoops on when I'm bedding in a new set of pads.
As you may have surmized by now, using the vehicle on the street & the track creates it's own set of comprimises if you're trying to save time, effort and money. That's why some have just bitten the bullet and actually have a "track car" and a "street car". It would be nice to be able to afford that luxury!
I'm sure you can find a shop in any major metropolitan area that can "hook you up" with SS brake lines. And I know there are small shops in little towns scattered throughout the country that do this kind of work. It will take a little research to find them.
Don't know if I told you what you wanted to hear but that's my $0.02 worth!