I don't see why that would be needed.
Even today just with HRT you can achieve a lot
Feminine appearance.
Female breasts capable of breastfeeding.
Female sensitivity around breasts, etc.
Smooth skin, reversal of hair-loss, etc.
Main thing missing is the ability to get pregnant and give birth.
Also this depends on the physical features you have when you start, for you it might be too late to pass and then transitioning is a lot less appealing obviously.