No, we aren't going to be told explicitly if he still preserves his meat and two, but on the whole I suspect he's still intact. If he's really had the lot off then I think he'd be using that in his argument a lot more explicitly - look, I can't be a rapist (again), look I'm just the same as the other laydees, etc. What we get instead are some veiled statements in the past tense (what happenED to be between my legs) and that his body is 'developed' which makes some things awkward or dangerous. I think we're meant to infer that he can no longer pee standing up, but that's where we're being led.
And just logistically - he evidently had the builders in for the top half since the rape which was two years ago?? I don't know how long it takes to get the stuff downstairs taken care of but I was of the impression that it's a long and not pleasant journey with a lot of post-operative care and work. I just suspect that two years is not enough time to have had all that surgical transition done.
Regardless of the rights and wrongs of this horrible man, it's obviously not on for any prisoner to be attacked while in prison, so his prison should be safeguarding him. I believe in the rule of law and in care of prisoners - which is the main reason why he should never, ever be allowed anywhere near the women's prison estate.