Thanks Sallyintnorth: I will keep your kind offer in mind for the future as wool can also be composted of course. In meantime, I have actually acquired 2 spoiled silage bales which was saving for mulching, but as suggested by bj-cardiff I might as well use them - it'll all go the same way in the end.
Not sure, landoverroy, that I'd want to be forking out £100+ per cu.m on ready made compost - budget is tight enough as it is.