Group from 3 students (Masters students with scholarship stipendium) looking for 3ppl flat/apartment for long-term rate

We are a group of friends looking for accommodation close to the University of Frankfurt Westend campus. We are scholarship holders and receive a monthly stipend. Looking for accommodation with 3 separate rooms, kitchen, bathroom, fully furnished. Our price range is 1200 Euros per month for the whole rent. Monthly payment will be guaranteed, however, we can not afford a higher price for rent.