When my car was in the shop, I was quoted prices like these...
Front-end alignment, replace front-right inner tie-rod (it was worn), labor: $350
Front-end alignment, camber kit, labor: nearly $500 (that was outrageous)
What I paid...
I replaced the tie rod myself for $16.99 (parts) and had the camber kit installed and a front-end alignment plus labor for $150.
It all depends on the shop, but you are really just going to take a beating on labor anywhere you go. All in all, maybe it was a tad high...
And yes, from what I've heard from friends and the technician who worked on my car, excessive camber on GTs and Cobras is common.
- Brian