Thanks all, I appreciate that you've taken time to look

Timeline wise, though its primary use is this project, such a big piece has to have multiple uses so I'm even considering Gothic Horror. What it isn't really suitable for is 16thC border wars, as its 17thC upgrades have made it just too fancy and cosy!!!
how do the gates attach?
Over the years I've tried all sorts of things: eg hinges fashioned from wire or cloth. But nothing has ever looked quite right, either the scale looks off or when opened the doors don't sit properly.
My last recourse, which I've used here, is a simple slide in and slide out. Sure it means no gates present in open door scenarios, but opened gates often get in the way of figure bases.
You can see the U shaped sliding channels in this photo:

Obvs I could have bought injected styrene or whatever but these are simply cut from the box that my razor blades were sold in:
