I have no partner or children either. I suppose it should make it easier but it certainly doesn't feel easier! I am probably worrying about nothing as I hardly ever see anyone from the team in person and I won't be the only trans person in the council but the other girl is so stealth I didn't know she was trans! I would love to have the same outcome.
If you aren't intending to stay you could just come out there as a test run maybe? Or are you woried it might affect your references?