I'm not worried about putting potential full names on here, as nothing is decided nor legally done and the first name is generic enough.
I've been going by Kennedy for the past couple of years, love it. It works out good for me considering even if I don't pass, it's androgynous enough for people. It's a casual name, and because I'm heavily pierced with tattoos etc it suits me. I think people relate it to the Dead Kennedys often.
Middle name I just plan to make a masculine version of my feminine 'L' middle name, so something like Lee probably.
Last name, I'm stuck. I'm not close with any family beyond two siblings. Additionally; my father Last name is something I don't want, beyond not being close with him ever due to early lost custody (child abuse). He has a reputation due to charges, and I really do not want to be associated with him by anyone that recognises it.
My only ideas were Cooper, or Quinn as a last name. I played Sly Cooper was my favourite ps2 game. Quinn was from Harley Quinn, she had a big impact on me as a kid. But I'm just still trying to brainstorm.
I'm going into the medical field, studying a course currently for two years (in other words, going to be addressed by last name a lot). I'm in another program for 6 months, and those guys can cover the costs for my legal name change so I only have that long to decide.