I installed a Prior rebuilt a short while ago and replaced rotors, calipers and hoses. The Prior unit is 659 plus they charge you 100 for your core. They pay the shipping back for the core. Their work is superb, tested, w/accumulator and remachined rear plate. Bleeding the system is not bad since it wil build pressure on its own and pushing down the pedal actually releases the fluid to the wheels. CAREFUL Fill the resorvior to the "step mark on the inside wall of the resorvior or it will leak out because its under pressure! Chris A has a great site for this info, simply print it out and follow every step and you can't go wrong. Good luck, Rob