Propane? Since when is that camp-cooking
When we sold a boat some years ago, we kept the Magma Marine Grill. It is about 18" in diameter and is just right for 2-4 folks. Good quality, with air flow control in lid. 10+ years of good service and still in great shape. Grill height is adjustable by rotating on the upright threaded center post.
I sack up the charcoal in individual quart-size baggies, so all I have to do is dump one in the bottom and start a fire. I bought one of the cheap foldable expanded metal grills at the camping store, so I just put the grill on it when time comes. Then if we want a campfire, I just dump the charcoal in the firepit and add kindling and logs.
Marine stores carry the Magma line.