A quart mason jar, with two pieces of steel tube soldered into the lid.

One goes to the bleeder screw and the other a vacuum source.

I use a vacuum pump for refrigeration service, but I wonder if the intake manifold vacuum would be enough? You'd need about ten foot length of vacuum tubing, but it might work.

I'll try it next time I do brakes. Might be easier than grabbing that heavy a$$ vacuum pump