I have a home built reverse flow stickburner with a 24"x +50" primary gooking grate. Did a 54 pound (dressed) whole hog (my first) a couple months back and it was great and I'll certainly do more. I'm thinking I have plenty of room for maybe up to an 80 pounder if I stay with the racetrack style. If I were to butterfly the hog, the 50 pound range will fill up my 24" depth and that is probably my limit.
Weber 26.75 OTG w/CI grates & SJ/WSM Mini
Home built 24"x72" reverse flow stick burner trailer with 18"x44" grill w/CI grates and upright SS gas oven/smoker.
Home built 48" fire pit with a 30"x30" Santa Maria style ranch grill.
Home built lump charcoal retort, iGrill & a bunch of other cooking toys.