the 1/2 and 3/4 ton GM D52 calipers are all the same piston size. i think 79 was the break to "metric" calipers, same thing but a 10mm bango vs 7/16". there could also be a difference between a 1" or 1.25" thick rotor on the 1/2, but 3/4 should be only 1.25" thick. i'd make the calipers/rotors/pads match f/r for convenience later.
booster - best stock one available should be fine
master - my YJ has the 69 corvette, the TJ has the ram 2500, both are good. i might like the vette master better, but i need to replace mine now for leak-down. (been a hard 15 years
) here's the pirate thread with fitting info
https://www.pirate4x4.com/forum/jeep...ade-yj-tj.html
prop valve - delete anything factory, get the basic willwood adjustable (i think summit sells it as a summit brand cheaper too). make a mount right under the master for it. chances are unless you have a big load it'll just be run all the way out. the bias will still be a tad back heavy, and i tend to wear the rear pads a touch faster. good pads stay in the TJ, rotate old pads into the YJ
lines - i have earls braided -3an stainless thru the entire YJ, zero hard lines, and would do it again in a second. it's so easy and zero loss of pedal. just gota get all the inverted flare and npt to -an adapters for the prop valve and master or linking back to hard lines.
ball valves - these are a good Parker valve sold under a different name on the cardboard for cars. love them!
https://www.summitracing.com/parts/aaf-all48010