Keeping part of money collected as donation as service charge

I am planning to raise undertake an orphan/poor education project where I will school these kids. Obviously the money required to do so will come from donation. My question is quite simple. Considering the plan that I have I will need to provide my full time effort in raising funds as well as managing the entire execution. I currently have a full-time job, Alhamdulillah. Is it permissible if I keep a part of the money that comes from donation as my salary for the time that I spend. Please advise.