I have had good luck just loosening the fitting at the outlet of the MC, and working it like a bleed valve. Easier if you have someone to help by operating the pedal, but can be done by sticking a big screwdriver into the hole and prying on the pushrod.
Loosen the fitting, compress the MC, wait for the bubbles to stop, tighten the fitting, release the MC. Repeat until clear fluid (no bubbles).
Of course, if you are using DOT 3/4, you might want to go ahead and bench bleed, to avoid any chance of dripping paint remover (aka glycol-based brake fluid) onto your paint.