Ok here is my firebox. The grate is a Weber replacement for a large kettle, 17" diameter. Expaneded metal is 8" tall total. Think I will build a small ring as an insert.
Grate in the background is cooking grate and inside the firebox are the fittings ready for the drum as soon as I burn it out. The inside surface of the drum has some light surface rust. Is it worth time to wire brush it, or should I just burnt it and oil it?