Node festival couchsurfing?

I am an Austrian interactive media student who worked at various festivals (e.g. prix ars electronica).
This year I really want to come to Frankfurt and also work for the festival in the first 2 weeks of February to get to know it.
I already got an okay to do so, but if I came to Frankfurt, I would have to pay for everything by myself ( i mean journey and staying there).
I don’t have a cash cow that finances a 2-week hostel room, so that’s why it would be great to stay at someone’s place in Frankfurt! What do you think? Therefore I offer a couch at my flat for the next Prix Ars Electronica in September.
Hope we see each other in February and best regards,