trans | Finding a new flat

Since starting transitioning medically I've lived with another trans person. But now she's having to leave, the rent is too much here anyway so I'm looking for a new flat & flatmates. I need them to be ok with trans stuff- I self inject T and will have needles (I don't want them seeing them and thinking I'm on drugs or something), I can't bind in the flat because my ribs are screwed and I'll have having top surgery within the year. I can't deal with the stresses of having someone who had comments or doesn't respect my gender or outs me but being stealth isn't really an option either.

I doubt anyone I know will be looking for a new flatmate so I'll be hitting the websites and notice boards. How would you deal with making sure they are cool in such a situation? I'm thinking on posts mentioning it would be the best idea so they know before contacting me but then I feel like I'm making a big deal of it.

cheers for any ideas