This is why I decided to go the open plan route on my setup. A secure run/coop, that is really just a big steel cage with a roof on it and place to roost that is sheltered from direct wind for stormy nights.
Just out of unrelated curiosity, what has winter been like that side, this year? I ask, because ours has been wildly warm. July to September are usually our coldest months and we have had temps as high as 31 degrees.
I think you will do well with the Potch birds. Hard to beat something that is bred locally, for local conditions. If you get birds bred in the middle of the UK, it is like getting a husky for a pet, when a Boerboel would make more sense.
Mine goes with them when they want to lay. Gets in the nest first to make sure he is happy with it. Gets out and stands guard at the ramp door for a bit until he is happy she is settled in. Then ducks out and comes back every now and then to check on her.
He is over the top protective of his...