native english teacher /au pair / nani

Hi ! I'm looking for a native  She english nani au pair for my kids . better british or irish but also american, australian or south african. she should teach the kids english , talk and play with them four hours a week , better in two days, for example mondays and wednesdays . we could also offer a room in hour detached house in exchange for that, always negotiable. we could also need her for an afternoon to mind the kids in the weekend.  we live in peñas albas, a very nice and quiet and safe neighbourhood, close to alcala de henares. well communicated by bus. eva