Hi FL
I don't have personal experience, but have you had a look at the ABA website - there's info on there for women who've had reduction surgery. Also, there's a great book called "Making more milk" which covers this to some extent also. You may also find it very helpful to contact a lactation consultant now and form a relationship and make plans.
It is generally possible to breastfeed, though not always exclusively - but you can define your own success. Any breast milk is great