"But how the h.ll a woman could possibly become a man and where and how does she get a man’s external plumbing?"
They don't.
We don't have the technology to make it work.
Testosterone will give you a beard, deepen your voice and enlarge the clitoris.
But that doesn't make a penis.
I'm pretty sure Chaz has admitted that "he" hasn't had genital reconstruction, just had "his" boobs removed and took hormones.
Although, as disgusting as all this sounds, I guess I had assumed that there were 'donors' who's junk (sorry, no better term comes to mind ) gets attached to the recipient.
Dear Lord! How gruesome this whole sick fad is!