Because it sticks out further than the insert we needed more insulative material, so we got a piece of limestone (set on two pieces of Mycor) to match the existing hearth. So here is our beautiful new stove, the Hearthstone Heritage (my, aren't we refined?). It is a hit with the cat, the laundry, and the rest of us, and we all look forward to figuring out how to maximize its performance and charm.
The Clydesdale will find a place in the workshop, and possibly eventually in another home. I have fantasies about using it in a cob-masonry stove kind of application in the future.
"What? You have a Clydesdale? Why would you want to replace that? Oh, it's the old one. Never mind."