For good or bad, in NY state you can get a prescription for HRT without therapy, I know a few who even get them from their local Planned Parenthood which offer the HRT service for TSs (only a few do.)
Bear in mind there are health risks with any surgery, and breast implants do come with some risk. Better you not have to go through that if you don't have to. Few surgeons would do implants on a male without some kind of assurance from another professional too.