Doverham,
If the Gallyon is the configuration you are looking for, it fits you & the condition is as good as it looks in the photos I don't think $2500 to $3500 delivered in the US is out of line. You can't buy anything else that comes close to the quality for a similar ammount of money and as you know, heavy proof English boxlocks in nice shape are not that easy to find (at least they haven't been for me).
I bought a similarly configured 12 bore 3 1/4 Ton 1 1/4 OZ proof Charles Boswell marketed Webley Screw grip actioned gun for my wife to use as a Vintage Clays SXS gun a few years back & we both couldn't be happier with the choice (not positive who actually built the gun but suspect either Wrights or AA Brown.
