I have never ran into a system without a bleeder on the slave. I always use a phoenix and reverse pressure bleed from slave bleeder into clutch master. The hardest one I have ran into is the ford ranger. You have to take the master off and make sure its level because the master points down and traps air.
I found this video and maybe you could do it like this;
Bleeding External Clutch Hydraulic Release Systems Without Bleed Screws - YouTube