I actually think this sounds wonderful! I would suggest, though, some thought as to how the buffet tables are set up. Do you plan to do one long table? Or, stations around the room (I know you are using chill tables for the cold items, but where/how will you have them set up?)? I went to an expensive wedding, with wonderful food, but it was buffet style- with servers at stations- and the line to get through it was awful. The first tables were long done while other tables still had yet to get through the line for food. I’m not a buffet person (but, husband LOVES buffets), but the lines drive me more nuts than anything. In particular, for some reason, buffets seem to frequently be set up for people to line up along one side of the table only. I would suggest that you have tables set up so that it is easy for people to access food from both sides of the table- have stacks of plates set up for both sides, put serving utensils on each side of the dish, etc. You may want to break the tables up as well, so there is not just one long line- for example, separate salad table, separate table for pizza, etc. I would focus on it being easy to access for people. If you have any elderly relatives or people who may have difficulty standing in line for food, I’d have someone lined up ahead of time to assist them.
As for the food choices, you know your crowd best. Sushi is a great option for many people, but not for all; same with wings, etc. I personally think you have enough food that there are options for everyone- I’d be pretty happy with pizza! I would have some vegetarian options (cheese pizza, vegetable egg rolls, etc.). I’d also try to find out if anyone is vegan- and, I’d provide for that as well. We actually had to accommodate a variety of dietary issues (allergies to peppers, peanuts, tree nuts, diary, vegetarian, celiac- and several, “I don’t really care for that- can I have this instead?”- bless our caterer!!)- we knew about some of those ahead of time, but did not realize how many issues there would be until we had people RSVP.
I think that given the amount of set up and clean up, you may not have enough help. That might be worth considering, as you need people to keep the buffet and drinks fully stocked, to restock food and utensils, napkins, etc., but should also have people clearing plates, picking up trash, etc. I think even two more staff may help to keep things clean and neat- and you will have less to worry about.
Enjoy! I think this sounds great!
If I was going to increase anything, it might be the PF Chang appetizer platter. I can easily see people taking more than three of those items and you potentially running out before everyone gets to it. I would also make sure there are tables with seating for everyone.