Try Jack Keister, he has a shop on 33W out by Hinton.
I think the name of the business is Accurate Arms.
He's been in business several years and is into light accurate hunting rifles.
He shouldn't have any problem going a trigger job for you.
I have an old business card that has his phone #574-0248 but that was at his previous location so I'm not sure if the number is still good.