Greg,
Prices seem to be running in the $1500-2000 range with blueing.

There's an old English smith up in the Ontario Canada area that quoted me about $900 U.S. dollars about 7-8 yrs ago. His website is http://www.precisionarms.ca/Images/WebPages/GGSWhole.htm

I don't know what he charges now nor how hard it is to get a gun into Canada and back out. Canada did repeal some laws governing long guns recently. Possibly it's easier now.