$15/hr is the absolute ceiling here for the most skilled wrench you can imagine, and that's hourly pay with seasonal hours and sketchy benefits if any. No thanks.
Just like I'd tell my students at the coop, if I can teach them, bikes are just too easy to fix to make a career of it. As much as it pains me to say, there's really no career to be had fixing bikes.
__________________
Shimano : Click :: Campy : Snap :: SRAM : Bang