About 4 years ago I shipped a friend a Tolley double 8 bore directly from my post office to his home in Dorset, England perfectly legal and it cost about $100. Gun was considered an antique both here and in the UK plus it fell into their obsolete caliber laws as well. the getting them there ain't the problem, it's the getting them back that's tough. Right now there's a straight grip A-5 20 gauge in a shop over there for a super cheap price that I'd love to have but the shipping would make it more than the gun is worth even with the cheap price on the firearm itself.
Destry