2002 Dodge Stratus Water Pump time.

Hi all, I am new here and wanted to say "Hi", and could someone tell me the labor guide time to replace a water pump and timing belt on a 2002 Dodge Stratus 4 cyl?

I am doing this job for a friend and not sure what to charge, nor have I done one of these yet.

Thank you.

P.S. Not to mention I work a job elsewhere, and I want to make sure I have ample time to attempt said repair.

Thanks Again!
Scott