I'd imagine if your motivations are what you say they are then you won't find transition very fufilling or appealing.
Firstly, My sex drive immediately fell through the floor and dissapeared for 6 months it returned later but was much reduced.
Secondly my body or even my mind isn't even close to attributes that I find attractive, Good chance yours won't either. You have an idealized image and that's just not how your body works.
Thirdly... Is jacking off to a mirror really gonna keep you going when things get tough? It wouldn't me... Electrolysis is painful, Rejection from pepole you love hurts, Stigma and hate hurt, Jamming that needle into my leg is painful, isolation and begin misunderstood continually is painful. As most can tell I'm not a ball of giddy joy.
What keeps me going is when I see my arms and legs covered in scars I know I have to go forward because I remeber how before it was so painful I tried to kill myself.
I'm telling you this to warn you. The only real benifit to this whole process is the loss of gender dysphora. Whitch in my story was certainly worth it.