Pumping these type brakes is not necessary. I have gravity bled brakes ever since I was about 14 years old. All you have to do is complete your repairs, leave the top off the master cylinder, fill it up and crack each bleeder screw open one at a time until steady fluid comes out. Close that bleeder screw, recheck the fluid level and move to the next.
RR, LR, RF, LF in that order. Only takes about an hour at the absolute most. Usually a lot less. Making any more out of it is simply unnecessary bullshit. It's really that simple.
If something without ABS will not gravity bleed, there's something wrong.
