I've spent hours on this site and have figured out I may need a new lock actuator on my driver side door. I have several questions that I hope someone will PLEASE answer:

Who is a good mechanic in the Dallas area that can install this for me? (I refuse to pay dealer prices)

I have issues with my driver side window working as well. Is this related to the lock actuator problem?

What is the exact part number and the best place to buy the acuator?

You guys are the best and I truly appreciate you help in advance!!!