Personally I wouldn't do it. Your gonna burn your UDS to hell and back, ruin the season, the paint, and, if you don't remove it, your thermo. Get another drum or a metal garbage can and make a burn barrel out of that.
UDS'-55&16, Akorn, Bar-B-Q Kettle, Drum Grill, miniWSM, cobweb-covered gasser. I'm JD.