I have done a similar thing to that in the past-i can already tell you that you´re going to face a lot of trouble and obstacles on your way...
The authorities will not care about you being "non-profit", nor will they reward your enthusiasm....they just want to see you jump through their hoops.....
So be prepared to take 2-3 years to set things up straight....
You will then need a team of about 10-12 people, working all kinds of "non-flying" jobs, like Quality and Safety Management...