I'm researching buying custom leather seats for my '95 Z28. The cheapest I've found thus far are $680 at leatherseats.com. I know some great seamstresses though and it would be easy
(and cheap ie free) for them to sew my seat covers if I just had the required patterns (patterns are a sewing diagram showing how much fabric you need and what size and shape to cut it).

I have searched near and far on the information super highway with little results as far as patterns, does any Camaro/FBody/GM guru out there know where I may find what I am looking for?

Also I know I could just rip out my current seats for the patterns but I want to estimate the cost involved with buying the leather hides before continuing. Also it may be that buying the seat covers is actually the same price as buying wholesale leather and doing it myself depending upon how much leather is required.