Doesn't it depend on what job you are looking to fill? If I needed a yard manager I would require some formal qualification, probably involving an HND etc.
An Instructor - well experience counts but ABRS or BHS exams are almost essential if only to keep your insurers happy.
But for yard...
That is a tricky one, haylage costs roughly £40 - £50 for a 300kg bale but that would be way too big for you as once opened they really need eating up within a week. I know it used to be available in 20kg bales but not seen them for ages. sorry can't help further, only suggestion would be to...