I think, considering how much angst is experienced by MTF's ("I'm too tall!") and FTM's ("I'm too short!"), it would be best if we could invent a Star Trek-like transporter, and swap consciousnesses between misgendered people.
That way, there's no surgeries, no hormones, just a quick and easy swap of the mind (and/or brain, if it's a wiring issue).
That should be easy to do, right? Let's all keep our schedules open for human trials in 2020, ok?
Now, let's round up some investors!