It's not hard to change the pump but bleeding the air out of the system may require operating the ABS solenoids to release all the air out of the system. Maybe too much liability to take on at home yourself. There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate http://bit.ly/AllData_Repair_Manuals_Online