A while back, I was asked about gunsmiths in Canada prepared to work on Single Actions for frontier action shooting. Then I drew a blank. Most gunsmiths in Canada have enough work dealing with local hunters, and clay target shooters. There are exceptions, but mostly working on IPSC guns, & such.
I knew that M.D. Charlton, worked on S&W firearms, and in fact he is Canada's warantee station for S&W. I had a 1937 Brazilian contract long actioned .45 acp revolver worked on by Murray. He did a good job, after locating parts that haven't been made for half a Century.
I spoke to Murray today. He is prepared to work on cowboy revolvers. He already receives guns from all across Canada for work.
He told me Colts & clones of Colts are no problem. Some Ruger parts, like free-spin pawls, are hard to get, but he is willing to discuss any Pards needs.
Give him a call at 250-652-5266, Ask for Murray