I've always felt a bit counter trans culture in that I desired to have a female body, but not identifying as a woman. I've been called 'transsexual-light', 'not transsexual', with the implication that my dysphoria was not taken as seriously as if I was properly 'trans'. I've also been a little bit of an oddity even among the non-binary in that I want a full woman's body. If there are others like me perhaps they are not admitting to it, are passing as transsexuals or I have simply not encountered them. For all that I am a transsexual, I'm gender queer, and I identify as non-binary.
I transitioned physically about 3 years ago - which is to say i started taking hormones and had SRS and am seen as female. At the time my identity swung enough in that direction to identify as female but I think it was a crafty trick my mind played on myself in order to get me to transition physically. It was a means to an ends and it worked. But 3 years on and I am exploring again and reclaiming my non-binary identity. But this time I am happy in my physical self. I dress in women's clothing, but tending towards the jeans , t-shirt and comfortable shoes kind of woman. I wear dresses over dress pants to work and occasionally a shirt and tie to get my sexy fem dom on. I don't feel entirely comfortable being put in a the box called female and while preferring to be called a 'she' it does not quite sit comfortably. But it sure as hell beats being considered my birth sex and all the dysphoria that entailed. What helps a lot is simply being open with people.
Anyway that is some of my story. I wanted to tell it just in case there were some other confused unicorns that were in the same boat - female body wanting but non-binary gender feeling. I think we often struggle with validity. I'm here to say that it is totally valid to want to have a body of the opposite sex even if you don't identify as that sex. And if your original model body causes you enough distress then I think this is a perfectly valid reason for physical transition, and to give the finger to the trans police.