Good Tech/Indy in Phoenix-Metro Area?

My dad is having ABC issues with his '04 CL55 and the car will probably be needing a new pump.
I am wondering if anyone in the Scottsdale/Phoenix area knows a good tech or a good independent shop. I want him taken care of, and the guys at Schumacher are a bunch of numskulls who are out to make a penny anywhere they can get it.
I appreciate the help in advance.


