I did my Seastar system in about 45 minutes, working alone. I kludged up an external fluid reservoir that screwed into the filler cap: 1/2 gallon pitcher, an outlet using a fuel barb (sealed with rubber washers and held on with a nut), a length of plastic hose, a stopcock so I could shut off flow when filled, and another fuel barb to screw into the fill opening. At the other end, a short piece of plastic tubing over the bleed nipple that went into another container with enough fluid to keep the end submerged.
Follow the directions that are on the Seastar/Baystar website (or should have been included with your kit), but do one additional step:
Once you get everything bled according to the directions, close up all the bleed nipples, and open the filler cap (might want to put a towel or something over the top, though). Turn the wheel to full lock in one direction. Rapidly, and forcefully, turn the wheel about 1/2 turn off lock and back onto lock several times. If your system is like mine, you'll get a bunch of air bubbling back through the helm reservoir. Refill the fluid, and repeat until you don't get any more air coming out. Repeat with the wheel going to the other side.
It's a PITA, but not terribly difficult.