I'm having a surprise 60th birthday party for my mom. This is going to be a seafood boil, since she loves seafood. It will be about 40-50 people. Within the seafood boil, it'll be; snow crab legs, peel & eat shrimp, potatoes, corn and sausage. Can anyone tell me what's a good about of pounds for the crablegs and shrimp? By the way, we're also grilling hamburgers and hotdogs for those who don't want seafood or for those who'd like that as well.