Here is my advice for uncooked pork ribs for 200 guests: I would recommend purchasing around 180-200kg of uncooked pork spare ribs. Pork spare ribs are very popular for barbecue as they have plenty of meat on the bone and great flavor. Make sure to select ribs with a good amount of fat marbling for extra juiciness when cooked. For variety, you could also offer 1-2 trays of St. Louis cut pork belly ribs, which are ribs cut from the belly portion with the rib bone visible on one side. Estimating 200g of ribs per person, a mix of pork spare ribs and St. Louis ribs in the 180-200kg range should provide plenty for your 200 guests while keeping costs around R34,000-R37,000 based on typical per kg prices. Let me know if you need any other pork rib recommendations!