Can front disc brake swap work with OEM wheels?

if you want to keep SBP but want to use the later 73~76 style components (which the dr diff basically just gives you a SBP rotor) then you're likely to run into two problems: one is rim interference to the caliper as @remytherat noted, and the second is rim selection.

rim selection is already limited in SBP so adding larger rotors and calipers is going to further limit what you can get to fit.

going to big bolt, you can run stock 14" steelies, but a lot of aftermarket 14" rims won't fit (for example some 14" rallye rims don't). out back, you can upgrade your axles or the entire rear end. some people like to run adapters, which are fine if they're good quality billet pieces.

or, you can source a factory 65~72 kelsey hayes disc set up. which comes with its own unique challenges, but gives you discs and lets you keep SBP and not have much in the way of wheel clearance problems.