Yes, I made the ring out of sheet aluminum and aluminum brackets. Got the rotisserie spit, forks, motor mounting brackets, and motor at a garage sale.
The fabrication of the ring took some trial-n-error so it would fit the WSM body and lid. The bottom of the ring slips down inside the WSM body a little bit so that it secure/stable.
I ran the bottom vents completely closed and the top vents (added an extra top vent for a total of 3) completely open. Lots of gaps between the ring and the WSM body / lid, so the Dome Temperature can really get up there (if the bottom vents are opened).
The important part of the rotisserie is the Maverick ET-75 Rotisserie Thermometer (not seen in the original picture). I made a wooden bracket to mount the Maverick on the spit, so everything goes round-n-round together.
I credit the nice golden color to two things:
Exterior Peanut Oil and the interior butter seeping out and doing the self basting.
No water pan / direct heat – The bird is high enough that the flame-ups don’t directly hit the bird and scorch it. Not to mention, the drippings off the bird hitting the hot coals resulted in an incredible aroma.