Just a note for anyone reading this and thinking about making their own uds. It's better to drill the intake holes before burning the drum. Gets far better air flow to the bottom of drum that way.
Modded Brinkmann Gourmet. Basic UDS. Rescued 22.5" OTS. SJS Mini-WSM. Stubbs. B&B Oak Lump.
Cannondale 2009 F8 (for burning off all the great BBQ)