I use an Australian slider caliper set up with standard 14 inch wheels.
the australian girlock slider (Girling lockheed) is the same as the post 73 short bracket slider caliper used in the US in every way apart from the fact that the US caliper splayes 1/8 inch wider at the claw. id expect the US stuff to fit with 14 inch wheels
your issue is finding the right PCD rotors.
other option is sumitomo calipers off a 1990s toyota hilux truck its little bit of a pain in the *** to do, if you are interested i can tell you how, and you would need rotors and a mopar to metric banjo fitting felxi hose for each side. it was a 2000s thing all australian mopars have 14 inch wheels this was an innovative solution into 4 pot calipers when space was limited. they are a steel 4 pot caliper in a very similar design to one of the wilwood models
the datsun 240/280Z boys have been using them for years, hence pad choice is wide and they are designed to stop a fully loaded 1.5 tonne mini truck with a much bigger rolling diameter wheel/tyre than a mopar.