I like Parkers, always have. But the Sterly is probably the right choice here. I would look for a Sterly pin gun to satisfy both sides of my preference. For the OP, the pin guns used an exposed and recessed hinge pin that strongly resembled the Parker style. My recollection is that Parker sued Fox because of the similarity, and Fox then changed the design. Researcher will know the details. FWIW, a respected dealer in old doubles (Ivory Beads, now closed) once told me that they considered the Sterly the best choice for a vintage duck gun. Attractive, strong and OK for moderate steel loads with shot cups and somewhat open chokes. My Sterly had a lot of drop and is the only gun I have ever sent out for stock bending. A nationally known and highly respected gunsmith blew the stock apart at the top tang. Be careful.

An alternative that has not been mentioned would be a Parker Repro. Sort of American vintage, but with modern materials. Could possibly find a decent 12 for $1500.