I don't really know whether it is possible to broadcast with peercast without connecting to the peercast network. But I think it is next to impossible to use flash player to play p2p MP3 streams from peercast.
You can use freeware red5 or Icecast streaming servers to broadcast MP3. Obviously there are stream capture programs that can rip MP3 from such servers, but you can't download MP3s from them directly.
You can use some other streaming servers. Say rtsp Quick Time streams are very hard to record.
And you can always use a
freelance project marketplace like GetAFreelancer, ScriptLance, RentACoder to hire an expirienced IT professional for you job. Just make sure the person you wanna hire has enough of experience in the domain. Also see other's feedback.