What is the relative cost of living in Al Ula? What is the cost of living in Madinah? How easy is it to travel from Al Ula to other cities such as Madinah and Makkah? What is the weather like in Al Ula? Is it manageable to have only one income earner in a household, with three young children? Are there international schools in Al Ula? Can an expat attend a local school?