Which Procar Seat Brackets

I have a 1965 Dart 2 door hardtop. Looking to use some procar seats for my project and trying to figure out which seat brackets are "closest" fit. Seems like trying to find the correct ones is a bit of a crapshoot and that they don't have one specific for '65, but more of a universal fit pre '67.

Anyone have good luck with a '65 with a particular bracket? A little fabrication is not unexpected probably.

Thanks