Send me suggestions, also. Determine where your population fits in this scheme. The 2.5 drinks per person per evening served my crowd very well and I had a very diverse crowd of all ages and types at my toga party. Pasta dishes, etc. Be creative About 10 pounds of ice per three people.
Apartment are often the first and last resort.
You MUST know someone whose apartment offices have a fancy club for rent. Veterans' Group Halls, Sons of Herman Hall, Am Vets Hall can be had very cheap. Have a sound system. Play all kinds of music. Print invitations at least one month in advance.