OP i got mine for free!!!
A friend of mine is a qualified doula but also studying midwifery so needs to follow through women as part of her course
If you are interested i can ask her if any of her friends need women to follow through still or she might be. The level that i have her involved is up to me.

Otherwise you can contact somewhere like ACU or other unis that do midwifery to see if there are students in your area suitable
HTH
odette