Multiple meats for my daughters wedding

How many kids will be attending? Things like fattie sliders on Kings Hawaiian rolls, hot dogs, or even sloppy Joes are kid-friendly.

Good advice here. Cater to the kids with low cost kid-friendly food to conserve the good stuff for the adults.

Yield: (less than 50% on brisket and about 50% on pork in my experience)
Brisket = 48
Pork = 27
=1200 ounces of meat / 175 (assuming zero kids) = 6.9 ounces per person

I'd say you're good to go with heavy sides and likely have plenty of leftovers if you also cater to the kids.

Is brisket "king" in your neck of the woods? If so then you numbers look good. In my area, pork is #1 so I'd be at 100lbs of raw pork, 72lbs of raw brisket, and 150-160pc chicken. I'd have leftovers with that.