Ditto to the above.
Also, I know that Mr Christopher (from the London team) atleast, does to Meta, though I dont know how difficult it is to obtain funding for it, as Ive heard it is much more difficult to go this route as opposed to phalloplasty throught the NHS. But I have seen pictures of a meta done by him and it was good. The guy did pump pre op. He pumped the "whole area", not just the penis. He claimed it helped with the insertion of the testicular prosthesis and the realism of the sack. Though this sounds completely reasonable, it is the only guy Ive heard of doing this. (But then again, I dont hear much about meta...)