Can your uncle give you any verbal help as to how to use that cooker? Do you have a time constraint that precludes you cooking the ribs in more than one batch or even a day before so they could be reheated on a grill? Any pictures of that barrel?
Jim - Another transplanted Texan
Former KCBS CBJ
Large and Medium Big Green Eggs , Black 18.5" WSM, Blue Weber Performer - Stainless, Green Weber OTG Kettle , Brinkmann SnP Pro, and a Stainless UDS. One retired Portable Kitchen grill.
Red Thermapen, Maverick ET-732, EdgePro Apex Sharpener.
Avatar is the original 1951 Weber Kettle