BigRix,
If you go with the wok idea, and are not dead set on a twist on style, you could always go this route:
Winz
I think I might try this type of set up with the wok.
Does this ash pan have the same measurements as the twist style?
Winz, did you have any more of those clips made up? If so, I would like to buy some from you.
This seems like the easiest to make out of a wok. Hole saw and a dremel for the slots and a drill and rivets or bolts for the clips.
Winz, what did you use to attach the clips? I forgot and can't find your post again.
Do y'all think ash would help season the wok and I could still cook on it?