73 74 Duster Sail panels / door caps

I'm redoing a '74 Duster. Frame off complete restoration. Replaced 318 with a rebored 360 to 408 - purchased at Summit Racing. Transmission replacement - auto to console and 727. Rear end to 8 3/4 w/3.23 - 3.55 too strong. All interior redone - ground up.

But, wouldn't you know it - the sail panels all cracked up - i think it was the guys taking them apart who did it.