Been cooking hogs on cookers like that since I was a kid! That's a quintessential NC cooker if there ever was one. That firebox is pretty small, but I always do a combo of a good oak or hickory fire burning in the firebox, then shoveling some coals from a fire burning in a barrel around the edge of the cooker. Pile in a bunch near the end to crisp up the skin and get some good cracklin'.
Silver Smoker with all the typical mods, UDS, 18.5 Weber OTS, Smokey Joe