how much can ya make as a customizer?

i know this is a pretty general topic & probably tuff 2 answr

reason i'm asking is i'm going to start building two different trucks over the next yr - a B2200 cab+ that'll lay frame & a b2600i 4x4 that'll b liftd w/mad tires - & it's possible that w a couple of yrs experience, & assuming i can do qood quality work (which remains 2b seen), i think it would be pretty cool to make a career change. if its something 1 can make a living off of then i'd probably opt for the best tools along the way rather than buy simply descent tool 2do the job. plus i'm think it'd b nice 2b my own boss working w/my hands. a draw back is that i live in a high cost of living area (Long Island, NY) which may not be a car centric as other areas of the country. any how, ur thougts wud be appreciated