I have done a bunch of them, but I am in Los Angeles, not Kansas.
You will probably end up having to send it off to someone.
Beware of local machine shops because while they might do the job, it might not be correct if you don't tell them everything that needs to be done and what is important.
The threads need to register off the center of the bore, not the outside of the barrel.
They most likely won't have an action wrench to pull the barrel, or a back-side spider on the headstock, or a headstock short enough to hang the barreled action out the backside of the headstock.
If they shove a center into the muzzle, make sure they re-cut the crown afterwards.
A proper gunsmith is the way to go as they should understand all the pertinent details.