I understand from someone else's question and your answer that you don't know of a place to buy bulk soil for a raised garden bed. My bed needs 32 cubic feet!!! How much, by volume, compost would you mix with top soil to make the best growing medium for growing vegetables and herbs? It will cost over $100 to buy 32 cubic feet of garden soil, even at Mendards! If I mix top soil with other, less expensive, things, maybe I can afford to do it! Thanks.