Hi @Leanne75 welcome!
There is a brilliant woman in Melbourne who specializes in bras for mastectomy and reconstruction. She used to be a Nurse and now does this, she is amazing and has all sorts of prosthesis from what I remember, her bra fittings are fantastic.
I had a single mastectomy in February but with immediate diep flap reconstruction, a year after treatment due to not wanting to risk a 3rd recurrence. So I waited to go and get fitted, now I feel so much better wearing proper bras. She does orders by skype even lol.
Hugs Melinda xo