Have you tried:
CATHS BANTAMS
Howden, East Yorkshire
DN14 7HS
Tel: 01757 630827
Laced Wyandottes, Hamburghs,Welsummer, Light Sussex, Silkie and Silky Sussex Cross
or
A ASHTON
Avian Pastures,
Howden,
East Yorkshire.
Tel. 01430 431162
Bantams, Wyandottes, White, Black, Golden, Barred, Columbian and Partridge. Silver Laced Buff, Blue and Pencil Anconas, Welsummers. Breeding Trios.
If they can't help you they may know other breeders.