If we imagine endless financial resources and no ethical restrictions, a man could have very very extensive procedures and treatment to approximate a woman.
However he would still be male.
Men who have smaller frames and who have had facial surgery sometimes look more convincing as transwomen but even then, sometimes candid photos give the game away. I saw pics of a YouTuber that made it very obvious, for example, and life isn't lived through studio lighting and specific camera angles. The male gait is a giveaway. Male head, hand size. Arm length.
At some point a surgeon will offer arm shortening (one already takes chunks of shoulder out to narrow them) but I don't know how they'll shrink a male cranium.
Neovaginas are a terrible argument. They're comparatively rare, they have numerous surgical complications, they don't look like vulvas/vaginas, they can't replicate the function of female genitals, they are prone to infection as are not self cleaning, they require upkeep (literal upkeep) and those made of bowel smell of bowel. They're often lopsided, or the "labia" are in the wrong place, there's no clitoris. And all that is after surgical revisions, wound dehiscence, infections and necrotic tissue, which seem to be part for the course according to those who have had this surgery and are discussing or reviewing it.