Found a Source for 10” rear drums with 1-3/4” shoe

The Jeep drum "wraps" the backing plate around with external finned part as the friction surface is over 20mm deeper then overall drum height. I will keep you guys posted on this.

The 123.63044 drum is around 75mm total height and the Jeep drum around 100mm.

I ordered a pair with option to return them so it's zero risk. I should know by weekend what's what.