Round bales or wee bales?
Suggest you call Pete Black at Newton of Collessie, he charges me £18 delivered for round oat straw feeding quality if I take a couple at a time, not sure where you are or if you can collect but he'd probably rebale a round into wee bales if he hasn't already got some made. They use a lot for chaffmaking so it'd not be wasted if you didn't want the entire bale.