Question about chrysler rallye wheel viniques and a disc conversion

The kit is just a 73+ Mopar disk conversion with a 5x4” pattern added to the rotors and the rotor hub outer diameter turned down some.

The instructions say the interior of the rim must measure at least 13.5” and have 4” of backspace. You have the brake kit already, so, measure the outer diameter of the hub and compare it to the hub bore of the wheels you’re buying too. Because that hub diameter may be smaller than a normal 73+ rotor, but it’s still gonna be bigger than 67-72 drum hubs.