Well, try this:
The bleeder screws have to be up (the cross over tubes have to be down.)
The calipers are mounted to the rear on the front brakes, to the front on the rear brakes. (they all are close to the center of the car.)
Hold up the RR caliper like you were in the car; the rotor opening is facing you (the bridge of the caliper is facing front of car), the bleeder is up, the flexible brake hose attaches to your left. The "other" caliper that also fits these criteria is then the LF - except it's not marked. Hold up the LF caliper and run through the logic steps above to make sure.
Do the same with your RF. Bleeders up, flex hose attaches to the left, rotor opening away from you, caliper bridge facing you. The other caliper that meets these criteria is the LR.
The pistons in each caliper have two sizes; the fronts are 44mm and 40mm, the rears are 42mm and 38mm. Yes, the rear SRT calipers and the same as the front Gen 1/2 calipers.