Well here is a link with some data on it. Also try Googling the gun name for more sites. The long link I tried to post didn't take. With U.S. gun laws now I don't think you can export guns out of the country anymore unless you have a very expensive exporting licence. Trying to do so would definitely get you jail time I believe with present laws. Even most gun parts can't be exported without the licence. Not even in swap meets. Canadians know better now not to go to swap meets in the U.S. for even gun parts,lol. Not even grips and other minor parts. Something to do with a law called exporting weapons of war I think its called. Ever since 9/11 laws have changed to extreme. But it does look like you've got some fairly valuable shotguns there for sure. Just have to sell them in the U.S. Perhaps one of the guns sites listed on this link would fetch you some serious cash.