Aftermarket brakes for a 70 Dart?

I am looking at for a set of brakes for my 70 Dart and would like to know what you guys are doing on your cars.

I would like run manual discs with 15" centerlines for a 4 speed car that will see street use and strip every so often.

This car will be manual steering, manual brakes and no air so it is basically a hot rod.

I already have a really nice early 4 piston setup stock Kelsey Hays small pattern setup but I am not sure that will be enough brake and I would like to change to 4.5 pattern to run centerlines I already have.

Please let me know what you guys like and what you are running for wheel size with your set up.

Pictures would be great as well and if you happen to have part numbers , even better.

Thanks in advance.