I'm a deployed soldier & I'm saving my pay for a new toy. Can anyone give me a ballpark figure what I should expect to pay for a hammered double 8 Bore made by J&W Tolley?

This will be my first bore gun. I have a couple of Sniders, two .45-70, and a Gemmer .40-65. I've been looking for something larger & I think an 8 Bore would be perfect.