One of the best things you can make for a ECB is a UDS style fire basket. Along with an adjustable intake, and proper exhaust, these things will operate just as well as a WSM or UDS.
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)