Where can a find this party venue?

right basically, my school is lame and never organised a after prom party, and noone has the guts to have it, do you know a stable, venue, FIELD? we could rent for TOMORROW night (yes im not expecting much or anything) and can have a license or allow if an adult is there for 16 year old to drink, and I no its not impossible because another school is doing it, we would pay up to 1800 or even more :D thankyou