I would plan for about 8 people, not members of the bridal party, to set up, serve and clean up this size party.

Is the caterer delivering the food to the site hot? If not, s/he will have access to cambros- transport cases that will hold the food safely hot for up to 6 hours- and that is what is needed for transport.

My amounts are calculated for self service buffets, so you will have guidance on amounts.

You can use the beverage planning guide for the drinks, do include dinner level coffee.

Before the Buffet; Why You May Need an Appetizer Table

A self-catered buffet is a real challenge to the organizers, and things don't always come together as smoothly as hoped. By planning and setting up an appetizer area or "nibble table" which is ready when the guests begin to arrive, the cooks and servers have time to complete the arrangement of the dinner buffet. This is especially critical if there are children among the guests, or there is a wait before dinner, as at a wedding reception.

This does not have to be complicated. Three items, plus a punch, or two if one is alcoholic, are sufficient. Typically, include a fruit tray, a cheese tray (your cheesecake could go here) and an attractive dip or spread; or you can go with a dinner theme such as TexMex with chips, salsas, Texas caviar and guacamole; maybe shrimps if budget permits.

One appetizer service area is needed for each 100 guests.