A lot depends on whether you want to make $$ or this is for friends and you're trying to save them some $$
Are you providing anything but the meat? You'll need to add at least $1-$1.50 for the plates, cutlery, napkins, cups, ice - you get the picture.
Same for drinks, munchies, etc.
I did a wedding rehearsal dinner once (not bbq though the food cost was comparable) and wound up losing $40. But I wound up doing table decorations, too, and that buried me. It was for friends so I just sucked it up and counted it part of a wedding present. I just undercharged - should have added $25 per table for the decorations and I'd have been clear with a little left over.
I did a family reunion for about 60 (brisket, chicken, dogs for the kids) and did all supplies, desert (cake), drinks, munchies, etc. and charged $17 per head - I made a little and it helped start paying for my cooker. Everyone was happy and the price was for ALL day - hence LOTS of drinks, cups, and ice.
I just did bbq chicken for 65 - chicken halves, green beans & potatoes (older people), slaw, cobbler & ice cream. I provided all the supplies. I charged the $8 per head (church) and still made a few $$$.
As you can see, it depends on what you'll provide. Meat only can be computed by taking your raw costs and multiplying by 3 or 4 (depending on what you figure as your food cost. Even for a full cater you can do that same thing - figure ALL your costs and then multiply and then divide that by the number of guests. With three meats and three sides I wouldn't be bashful about charging $15 or so - I usually ball-park costs as $1 per meat (except ribs-$2), $.50 per side, and then do the multiplication (those are per person estimates). You can certainly multiply by 2 if you have a big heart!!:grin:
Good luck! :grin: :grin: