Two Female Ojos Azules Cats

I have two fixed female Ojos Azules Cats looking for a new forever home. They're my babies and I hate to see them go but we're having to re-home due to health issues. They are sisters and just turned two this year, they're both already litter box trained and extremely mellow and sweet cats. They absolutely MUST go together to an INSIDE home only, I won't separate them and they've never been outside before. We're asking $50 for them both just to ensure they go to a good home.