It would take me about 4 hours to fabricate a set of disc caliper brackets for your front axle. I've done similar things on round track race cars for 30+ years when no exact brackets exist for a particular application. Find a disc that fits your hub, use air pressure to clamp the caliper onto the disc, and fabricate whatever brackets you need to make the thing work, using the bolt holes in the spindle where the drum brake backing plate would usually mount.

I had a friend in high school who managed to fit three Stromberg 97 2-barrels onto a 51 Chevy 216. He never made it to the road since his driveway was slightly uphill. The car caught fire twice from lean backfires. He went back to a single carb after that fiasco!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!