I don't see how could combining a 'Look-for-keys' in a Multiplayer RP server could work. I can clearly remember how frustrating it was to log into WB, looking for that god damned red key and stroll into that locked door and earning that shotgun, only to log out and lose the damn thing in the process, not to mention I don't see how could singleplayer quests could get along with multiplayer RPing, it's like MMOs in a way, let me explain how I see it:
A guy walks into the pub, bartender goes "Rescue my daughter", you rescue his daughter, return to the pub, and the quest resets, 5 other players stroll in, they all rescue his daughter AGAIN. in your point of view you just rescued her and she magically gets re-kidnapped or something. anyway, that was just an example.
However, disregarding everything I said I might give it a look, I could be very wrong.
Oh, also would love to help in any way possible, especially composing music.