Thanks to everyone for the inspiration. A GE 7.0:
Made some good use out of my Kreg Jig and some 1 x 12s:
Went with glass tiles on the collar and make it a bit different:
Decided to cut tight and tack the insulation in with some screws instead of using liquid nails:
The business end, up close and personal:
Finished for now. Will build some tap handles, mount the temp control and eventually build a cabinet around the base.