Does anyone do their own hay? We've got 3 goats, and will get lambs and possibly steer in the future. We have 5-6 acres that we could devote to hay, but have no idea what it takes. Right now the field is grass and weeds. Does that work for hay, or do I need to plant other stuff to make it more useable? Also, can I do it without tilling? Any idea what type of equipment to get and still make it affordable?