Family moving to Girona area

Hi All

Hoping to get some advice on here regarding moving my young family to the Girona area from Ireland

Myself and my wife are considering a move to the area, we will be purchasing a property with a rental attached in the hope to AirBnB it

My question is the kids, has anyone done this with young kids? we have a 2 year old and a 4 year old, both girls, would anyone have any recommendations as to whether the international schools would be the only way or has anyone had success sending them to the normal Spanish schools and they blend in well?

Id also like to gauge how people find the cost of living, obv I can find certain 'figures' of things on google but what's the reality, basically, how much to get by as a family of 4 on average etc??

Any help on this would be appreciated

I probably have a million other questions but this one is our current

TIA