Hi honey. Totally relate.
Just substitute "woman" for "man" and your post pretty well sums up my situation at the moment. I have lots of Lesbian friends. More friends is not what I want right now!
I crave a woman's touch, and the "Femme Invisibility" that feminine lesbians suffer from is all too real in my experience. If I had a thing for Butch girls it would be easier.
When I meet a woman I find attractive it is really hard to judge how to approach her if there is a chance she is straight and would react badly. I hope that having found places where there is a greater GLBTI presence I can improve the odds, but it is frustrating.
If you knew for sure that the guy you like was totally cool with transwomen, in a totally straight way, I'd say just approach him directly and ask him out. That requires that you find out his feelings on the matter. Tricky, and might need some subtle questioning in the guise of conversations. You are a woman, that's what we do

If he does knock you back for whatever reason, you aren't really any worse off than you are now, so why not give it a go.
I hope you can make it all happen, it gives the rest of us a boost too. We expect lots of girly gossip if it does work.
Karen.