A/C Compressor replacement on 1996 Lexus ES300

What is the cost (labor) for installing used A/C compressor on my car (I can get used A/C compressor part on my own) in denver metro or DTC area? Someone please respond.

Asked by for the 1996 Lexus ES300
Here's our estimator link. I hope it's of some help. My guess is at about 4 hours labor at the local rate for a new compressor.
If you want to find a specialist, here's our directory link for you:
I don't know the local labor rates in your area so you may have to phone around and check.
I don't imagine any competent, experienced technician would guarantee his work if you supply a used compressor so don't be surprised if they refuse the job.
buying a used a/c compressor is like buying a used condom.
you don't know where it's been and you don't know if it will work.