There is a group in FB that lead me in the right direction when I attempted
I think this was it https://www.facebook.com/groups/AdoptiveBreastfeeding/?ref=share
Ultimately, after pumping, for weeks, I stopped when our baby came as it was going to add so much work as was going to have to have to still supplement. I didn't want to take hormones (never took birth control and didn't want that in my system), so I wasn't going to be able to produce enough.
Have you reached out to adult adoptee and birth mothers about this? I know you have the best intentions but that may be able to help you decide. A lot of parents who produce extra milk give it away for those who need it. If you’re looking for that extra bond with your child there’s a lot of other options to do.