I need to rebarrel this rifle and have a full octagon replacement barrel. I need to know where I can find a gunsmith to do the rebarrel job! The firearm is 1899 vintage and is not a collector item as somebody has buffed it a tad too much. I bought it as a shooter and want to use it as such! Can anyone advise me who can do the job. I believe the current headspace is not optimum.