Does either location have a area for large parties, (like 25 to 30)? Does it need to be reserved? If so, how far in advance?

Either place can. You will definitely have more parking at the west Knox location. Can't go wrong at either location as far as the food goes.

Certainly reserve that but they should be able to meet your needs with advanced notice.

I think so. If so it probably does need to be reserved well in advance. Very nice place.