Would cost more than the gun. I think Brownells has kits with a barrel guide that indexes off of the bore that if done carefully could be feasable. Of course there are barrels of most every confoguration available for the 10-22 any of which would rival the price of having your barrel threaded. I think Adco charges $140 for a barreled reciever bolt action.
I won't quote a price because every barrel is different and I had a scope mounted at the same time. I will say it was much less that the ADCO quote above. I had it in less than a week. He is in Preston MD and a IP here.