Does it have to be a "master Glock armorer"? I'm sure there are plenty here that are not certified that would be more than willing to help you out as the Glocks are about the easiest handgun to work on yourself.
Could drive down to the Olympia area and have Morris at Aro-Tek do a trigger kit for ya. He's a blast to talk with and been working on Glocks for...well longer than I can remember.
"But as for me and my household, we will serve the Lord." Joshua 24:15