8 3/4 rear disc swap - ford ranger/explorer

i'm missing how the 5 bolt pattern on the 8 3/4 axle flange is going to mate to the 2 bolt caliper bracke

The"backing plate" is all one piece, which contains the caliper mounting bracket. The first photo shows where you have to drill the 5th hole. The second photo shows the different kind of emergency brake cable. On regular drum brakes, there is a ball on the end of the cable. On this setup, it's a squared eyelet that goes over a hook. I haven't figured out how to deal with the e-brake cables yet, mine were cut off. I think I'm going to go to the junkyard and scrounge up a set of cables, then figure out how to hook them up.

rear disc 1.jpg

rear disc 2.jpg