I rent my 3 bedroom apartment of Oktoberfest visitors. Apartment is about 10 minutes walk from the Oktoberfest and is fully furnished, there are beds for 6 people but if they want they can get like another 1-2 friends with, to sleep for space-they just need to bring air mattresses. Just bring their clothes and move.
Washing dishes and are free to use.
Prices to 2 persons: 100EUR/ Person/ Night
Prices from 3 persons: 30EUR / person. / Night;
Prices for longer time: inquiry