If they'll take haylage, Whitehouse Farms have been supplying Mole Avon and others with excellent small bale haylage this winter. (Actually, they may have hay too, I haven't asked as I'd got a source of local hay. They do straw too, which I've also been buying, and which both the cattle and sheep love.) I know they supply Mole Avon at Okehampton, likely they supply others that would be nearer to you too.