Hi, you could try Andrew at Powys Poultry. He used to be based on the Welshpool/Newtown Road but I think he has moved to Llanfair Caereinion now. Sorry, don't have contact number any more but sure you could find it. Really nice fellow. We bought Friesian Fowl from him. He did various pure breeds as well as some hybrids.
Charlies have a poultry sale usually once per month.