Working for free might sound like a good idea in theory, but even charging a little bit is justified when you have talent, and it implies confidence in your final product. I used to offer free music to film directors as a way to become exposed, but in the end I was just being taken advantage of...
30 EUR sounds pretty cheap for a professional quality mic, so I would probably loan one so that your dialogue doesn't sound bad. You will also need music for your film, which means either hiring a composer or searching through a stock audio website for some ideas.
I have heard that this is one of the best cameras for a small budget. I would definitely recommend it.
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Aaron Martin, composer
Hear My Cheap Stock Music Compositions for Your Film
Captain America. I enjoyed it and the ending is kinda sad. I have already seen The Avengers and I am now trying to see all the movies that came before it.
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Aaron Martin, composer
Hear My Cheap Stock Music Compositions for Your Film
I realize this is off-topic from what you were asking, but if you needed music for your film, I would be glad to help out with that.
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Aaron Martin, composer
Hear My Cheap Stock Music Compositions for Your Film