Wedding Questions!

LaureeBelle
My sweet boy and I are talking about getting married 07/07/18 or 19 haven't decided for sure on a date (it depends heavily on if we end up moving because of work) but have decided to start planning the wedding now regardless of which date we choose. I've never planned a wedding before... so I have some questions! 
1. I plan on making my own dress. I know how to sew, and it seems way more meaningful to me than buying a dress off a rack. Can I still take my girls with me to go try on dresses for inspiration?
2. How much is the average price of a bridesmaid dress? Like how much would you ask your girls to spend? Over $100 seems pretty expensive to me considering they'll probably wear the dress once... if I wanted to make them dresses would it be acceptable to ask them to pay for the fabric? 
I'm sure there's more but that's what's on my mind right now😂