Also, I don't really see where there is spending involved. Even if there were, the amount would be insignificant to even care about. There is much more waste elsewhere in the system.
Last but not least, this guy shouldn't even be serving the sentence he is.
That said, if he wants to be recognized as a woman, that means he wants to be placed in prison with other women, which is clearly an issue. IMO the military has no choice but to place him in a male facility and call him whatever he wants to be called.
I was in the military, so I'm quite aware of the programs they offer. My point, if you'll read it, is that Manning no longer qualifies for those benefits, and that said benefits should not be offered by the prison system.
*Feel free to replace girl with another appropriate feminine noun, I know some people consider it diminutive but it's probably the closest alternative to guy I can think of right this moment.