The RBST Field Officer for the North is Ruth Dalton. She may well be able to help.
Link to her info page on the RBST website.
Another contact would be Alice Underwood of Sheepfold at the Wool Clip in Caldbeck, Cumbria. She used to be the secretary for RBST NW; she keeps Manxes and the occasional Boreray herself; she and her pal Sue Parker started Sheepfold to promote British sheep and their wool and work with a network of providers of rare breed fleece across the north of England.
Alice has just published a
book, Sheep of Many Colours, featuring information about, pictures of, and knitting patterns for, twenty selected British sheep. (Full disclosure, Alice and Sue are pals - but have become so through our shared passion for British sheep and their fleece.)