I am looking for anyone who might know what windshield would fit a first gen camaro 68 vintage that has a built in antenna in the glass

 

Might be a long shot, but....http://corporateportal.ppg.com/NA/OE...te_antenna.htm
If you're looking to put on a windshield that's made for a different model car, I don't see that happening without having it custom made or altered.
The embedded windshield antenna uses two thin filament wires. Have you thought about trying to string your own wires and hiding them around the outer perimeter of the glass?

 

I need to replace the broken windshield anyway, I was looking for a possible interchange with internal antenna. I have a 69 chevelle that I was able to find a windshield from a 73 chevelle and was able to get rid of the ugly fender antenna and clean up the lines nicely.