Lodge Grill

I just bought the lodge grill. It grills great and we've already used it for salmon and steaks. Was wondering if there is a lid you can get for it. I saw nothing on the Lodge site so was thinking of making one out of some steel (whatever is available at work). Has anyone done this or do you just get by with the foil?
Why do I need a lid you ask. Well I use it for cold weather camping as well as liking to get a little smoky flavor when grilling.
Why do I need a lid you ask. Well I use it for cold weather camping as well as liking to get a little smoky flavor when grilling.