As you can see there are two schools of thought at work here:
A: Just replace the clutch master, assuming it's not a case of more bleeding needed and is a case of a bad clutch master.
B: Do a total refurb of both hydraulic systems and spruce up the pedal box since it's been removed.
Assuming A, if the pedal box has not been disturbed since new or was reinstalled per original factory installation, then you can loosen the nuts on the two long bolts that secure both masters to the pedal box, push the bolts to the center, and free the clutch master from its mount.
If any other conditions exist, and your plans for the car are long-term possession, then I'd recommend the total refurb approach.