Gorgeous! (Excuse the ignorance please) What is the species? Looks like pork but then the grain of meat looks like a beef flank on one side of the ribs or is it belly?
The meat counter at my local Asian market keeps them in large square slabs like those. You tell them how you want them sliced. They usually slice them down to about 1/4" for grilling.
Figured beef from the contents of your rub. Those look outstanding.So they are uncut short ribs?
I will wait paitently for the final mouth watering results.