KGS365 -- Both Connecticut Custom Car & Tony's have a price sheet for ERA Cobras that they will fax to you. I only have experience with Connecticut Custom. They do phenomenal work; their painters' hands have been touched by God.
You can give them a call at
(860)253-9553 and they will fax you their current prices. Different items, like rounding the inner lips or doing the inside of the trunk lid, cost a bit more and there are slight premiums for colors like silver, red, or black. A word of advice... do not skimp on your paint and body work. It's pretty hard to "upgrade" your paint job a year or two down the road. You will eventually want the best, so you might as well get it now.