i use a floor jack.
remove the saddle. place master cylinder rod through the hole where the saddle was, rest the body of the master on the top of the lifting arm.
place a rod that fits the hole in the push rod and is long enough to span the distance of the bottom of the jack frame.
if you are worried about pulling the guts out of the master, fab a plate with a "C" notch the size of the rod, and place it between the master and the lifting arm at the saddle hole. 1/4" plate works good for this [what i have] but 1/8" would also work as well.
jack the jack, and the rod will pop out.
pretty easy, and i have done this for years.
hope this helps.