Looken GOOD!!!!!
The twin stacks, might you be doing a reverse smoker in the right pit?
Just thinking, with a sliding 'door' on the separator, and a smoke deflector, you could do a reverse smoker in the right pit.
Then with the propane setup in the left pit, you could do a 'low & slow' smoke in it, at the same time.
OR with the 'door' open, and the smoke deflector out, you could grill (on the right pit) and smoke on the left pit.
Just thinking.................Larry