Hi,
i saw the phpSound instruction of software you bought, and i think this is a right job for me.
I have an additional information about servers you planing to use for this, target country you wanna get users from is depending what server type will be.
What i can provide you is: installing and manage server/s, installing and manage php/DB, adding FB Login, integrate PayPal API, customize theme, etc...
If You have any questions, please be free to contact me.
Sincerely
Dragan Petrovic