Well before you rush into anything, one wonders why they are not making a bit more of an effort to come to you. Surely if they came in the summer they could even rent a house for a week etc. and also I have friends in a similar situation and their children fly now down to the South Coast, can't remember the airport now. Lots of people in later years move to the South Coast and it is more usual for the younger ones to make the trip. I think you should think carefully before getting into all these financial upheavals. Yesmadam's idea is excellent too.