I would look into Splitsville. They are used to bigger parties, who would like to bowl on a few lanes, but you don't have to bowl. LOTS of seating in different groupings. I would call them to see if you can book .... and if you want to bowl for the kids, you could do a few lanes. The menu is varied and reasonable.
http://www.splitsvillelanes.com/location/orlando/
BOOK A PARTY
PERFECT FOR BIRTHDAY PARTIES, OFFICE TEAMBUILDING
AND CORPORATE EVENTS, CHARITY FUNDRAISERS
OR EVEN JUST A REUNION WITH FRIENDS.
Neither of these have enough seats for their high level of popularity so I can't imagine you could get seating for that many, let alone near each other.
It is VERY VERY loud. If we want to visit, that is one place we will not go.