I need help. I am looking for a large fire grate for an open pit BBQ. I can find none anywhere. Home Depot and such only have puny ones. I am needing a grate about the same dimensions as a common interior door. I looked at some metal shelves that looked very interesting. They were the right size but you had to purchase the entire three shelf setup at over $200. All I need is a grate! Any ideas where to find one cheap? Thanks.