When John Walker switched from gravity bleeding to pressure bleeding, I decided that was the way to go.
Here's my home-built pressure bleed system. It connects via the master cylinder reservoir overflow nipple. Instead of clamping off the overflow hose, I disconnect it and replace it with the hose from the pressure bleeder. I set the regulator around 10 PSIG and there is an orifice to limit airflow in the event something gets disconnected. I usually bleed both rears before depressurizing and refilling the reservoir.
If you had to buy all this hardware, a Motive bleeder might be cheaper. I had built this to use as a leak down gauge, so all I needed was an adapter with the right size hose.