Jazzspot you already have one of the BEST SET & FORGET smokers on the planet already and don't even realize it.
I wonder how much your looking at spending for a new "set and forget" smoker? Spend just $ 60.00 for the Afterburner LP Char-Griller conversion kit and you have an inexpensive "set and forget" smoker that holds the temp to the exact degree and still has acres of meat smoking space!
It doesn't take five minutes
to place the Afterburner in the SFB drawer and screw the hose onto the burner inlet and turn on the tank. I've used mine twice and it will bring your CG up to smoking temp in approx 15 minutes. Then just dial in the temp you want to smoke at on your grate level therm and she holds steady as a rock until you reset or turn it off!
Another bonus is after the cook the mess dissappears! There is nothing in the SFB (cept maybe a tin can full of smoke wood ash) and all you have to do in the MC is empty or throw away your drip pans and turn up the heat to 400*-500* char the grates a few minutes and wire brush off. Mess is all gone. Re-spray or wipe the grates down and all done till nest time..no muss no fuss!
If you like and want to use the ole CG to grill up some chow direct or indirect in the main chamber the Afterburner is fine you don't have to remove it to use the MC for grilling. You can even use the afterburner to heat up the SFB warming shelf if your so equipped! Like to keep your BBQ beans hot while indirect grilling some ribs.
Then when that nice blue bird day arrives and you have the time and inclination you can go back to using briquetts, lump or do a really traditional all wood smoke! Just unscrew the hose take out the Afterburner reinsert your charcoal basket(s) and your good to go. The best of all worlds.
This is the perfect solution ...unless of course this is just an excuse for you to spend allot more of your hard earned money for another smoker. Then this isn't the way for you to go.