For me, not having the right parts also means that I can´t quite discover what I would like if I had the right parts. But I did try to approximate the situation (like I bought a prosthetic and played around with that). I guess imagination can take you a long way, but not all the way.
I´m on a similar path in the sense that I think sex can lead to a deeper understanding of who you are, but I personally believe that in order to experience this, you need to first regard your genitals as truly yours. Some people can do this and others can´t until they get SRS.