I agree with the above, get an original and you know it will fit and look right. I have seen more than a few repro shells that their necks are too short and shows the radiator neck, the repro shells neck being to small and not fitting over the radiator neck and the hood not fitting correctly. Many repro shells are chrome plated, which I guess is OK, but Ford nickel plated 28/29 shells.
Rusty Nelson