I had to replace mine a few weeks ago, went the Oberon route..and used 7.5wt fork oil (Ohlins is what I had on the shelf)...
filled the slave before I put the line on, cleaned the master, filled and flushed (about 3 reservoirs full)
snugged up the banjo while squeezing the lever..then cracked the bleeder and 3-4 lever pulls it was done.
Rode it around a couple days and just for fun cracked the bleeder got one tiny bubble.
I like the lever feel, with the Fork Oil & the aftermarket slave, however I am rebuilding the stocker for "just in case" in the future.
Ball Ground Ga