63 Valiant disc brake swap kits?

Sorry, I started by searching the threads, but some refer to OOB dealers, and others, I still have questions! Looking at disc conversions (disc, manual dual MC, new lines throughout) for Mabel, 63 Valiant.

I saw SSBC mentioned on a 63 Dart, 14" wheels should clear (Jim K)...will that fit a 63 Valiant? Their site doesn't show it. If they would fit, do you know if they something off the shelf and identified, when it's time to maintain/replace pads, rotors, etc?

DrDiff looked to be larger (Belvedere, Fury), so nope.

Classic Industries also not showing 63 Plymouth.

And I'm not trusting my abilities or the parts I'd find, hunting down early 70s that should work.

If I'm just not looking hard enough, let me know, and thanks!

Steve