Cis guy here, so forgive me if I'm overstepping bounds.
I've never been comfortable in places like this, and choose to avoid them, even though logically I've got no reason to be concerned as some people might. But it just doesn't jive with me; I'm not that comfortable with my body.
So, I salute your bravery when approaching this situation, especially with the additional concerns that you mentioned. You've got more courage facing this than I do, that's for sure. I hope everything works out well for you! Cheers