I did it both part time to support my habit and full time to support myself. Lots of hard work and fun but not good money. Atleast not back then in the early '90s where I worked.
Just building a few bikes a day once a week should be fun
if you can avoid becoming dedicated to the job and stay off the sales floor.
OH Yeah CONGRATS!!!
__________________
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk