Money is a non-issue. I admit I don't know exactly what hormones cost, but assuming fifty to one hundred dollars a month for the full thirty-five year sentence... $20,000 to $40,000 roughly.
Do you have any idea how much we will spend to incarcerate her? Heck, there are generals who will waste more money than that (in stand-around-doing-nothing time) just deciding which side of a bush to pee on. With how high-profile her case is, we could raise that online in a couple of hours.
The question is not money. It's about whether a convicted spy deserves treatment, whether she has to earn it*, and if so how.
(*There are lots of transexual people who can't afford HRT. Are they any less deserving than Manning?)