There's heaps available and many options!
I have rx7 series 4/5 brakes with verada disks, I have hilux 4x4 calipers and matching disks, sumitomo calipers and disks, girlock calipers bolt small and large style ect there's also rx7 and Audi disks, r32/33 combos just depends on budget
As for Coilovers it depends on what you want to achieve as far as height/camber/stiffness as there are many options with these as well! I have stanza Coilovers, 200b/240k Coilovers, 200b shortened struts with 240z inserts, now also looking into even shorter strut setups
Then u have s13 if you wish to go that