I would suggest starting with the Revell '67 Camaro instead of any of the AMT kits. The reason being the AMT kits had body proportion issues. Since you're going to be doing body modifications anyway the '68 grill shouldn't be a problem, and the rear spoiler and rear valance area are all going to be fabricated also. The pictures you have should be a perfect guide for the rear. In a resent build on the forum the builder used pieces cut from a plastic spoon to create the fender flares and they looked perfect. I'll enjoy watching this build. I have owned several Camaros in the past including a '69 that I had for a total of 18 years, I was the second and forth owner.