Thanks everyone! Definitely a cool setting, and the artwork in the rules is super evocative I think (hope they manage a release soon).
Fred, the mail for the horse is on the Perry agincourt knight sprue. It's their regular medieval horse, but armour panels and armoured head is on the knight sprue, not the horse sprue itself. I like to green stuff a little strap over the rump of the horse as the mail panels don't match up perfectly there.