Keep in mind, with rear drums the considerations for MC and booster are different than if you were running rear disks. They hydraulic needs of wheel cylinders vs 38mm calipers is different.
There actually isn’t any MC to swap to as the smallest 4wheel disk MC (94 cobra) is still too large for wheel cylinders and will give you a hard pedal.
I often tell folks doing front sn95 brake upgrades to just try it first on the stock MC/booster and see how it feels. Usually it’s pretty darn good.
Rear disks, my answer changes
There actually isn’t any MC to swap to as the smallest 4wheel disk MC (94 cobra) is still too large for wheel cylinders and will give you a hard pedal.
I often tell folks doing front sn95 brake upgrades to just try it first on the stock MC/booster and see how it feels. Usually it’s pretty darn good.
Rear disks, my answer changes