"Bench bleed" doesn't mean you have to do it on the bench. Indeed, I always install the MC in the car so I can use the pedal. The important thing is that you have the outlet ports looped back to the reservoir, using clear tubing so you can see when you flush all the bubbles out. The tubes and fittings for bench-bleeding come in some rebuilt MC boxes, or auto parts usually have. If you bleed the MC well first, it is said you can connect to the car's tubes and get a hard pedal right away, as long as the tubes stay full of fluid. My trick is to slightly press the pedal as I tighten the tubes, so you get a little dribbling to insure "all liquid". For those using DOT 5, pour it down the side of a funnel so it doesn't entrain air bubbles. If you get any, wait a day for them to come out.

__________________
1984 & 1985 CA 300D's
1964 & 65 Mopar's - Valiant, Dart, Newport
1996 & 2002 Chrysler minivans