Before Santa Claus brought my custom reverse-flow offset :becky: I used my 22.5 Weber Kettle. I used firebricks to create an indirect zone so what you have come up with will work just fine. Fill the divide with unlit Kingsford mixed with wood chunks. Fire 15-20 briquettes and when ready, sprinkle them over the unlit briquettes. Open the bottom vents all the way as well as the top vent. When at 250 (I hope you have a thermometer) shut down the bottom vents and use the top vent to maintain the temp. With this set up, I can get 6 hours easy before refueling with unlit charcoal. I add wood chunks every few hours. Also, you may want to take one of those pans and place it under the meat section. Wouldn't want to get pork fat all over the nice condo balcony!
Let us know how it turns out. :thumb: