I am sorry to hear this...
I think that braiding is the kind of industry that lends itself to "home entrepreneurs," if you know what I mean...
When I was in school, I would ask someone who had nice braids who did her hair. That's how I would find someone who could "do hair" on the cheap. I have had really nice braids done for $40-$80 depending on the style.
The best story is of Mary Jane, who would do my hair, watch TV, gossip with her neighbors, take smoke breaks, read her magazines (lol)--ALL at the same time
. I remember once getting smaller braids and going home with half a head done but Mary Jane could do hair...
All I am trying to say is, if you need to spend the $100, you could probably find someone who does it at home for way lower than that price. I didn't do this back then but you may want to interview or consult before your appointment just to make sure that you are all on the same page before starting.
Chichi