I THINK I must be crazy, but I do my own binding. Sew it on front by machine and by hand on back. It's no big deal to start with a pinned foot and move the pins another foot. It makes a good project while watching TV.
If you need to make some money for your work, think about how long it takes you to do it. I think you said $10 for a crib quilt. That would be about an hours work. Sounds reasonable. I would start with that, keep a time table of sizes.
Single about 2 hours and continue double, queen, king. When you get to King, it would be in the range of $50. Try it, It might work. That is the way I figure it for selling a complete quilt only I use cents not dollars per square inch.