Regarding Child School and Hifz in Riaydh with just Dad's Iqamah

Hi,

I may be getting a job offer in Riyadh/Jeddah from UK. My daughter had completed 20 juzz of hifz and I thought of having her in a full time Tahfeed school so that she could complete her Hifz and carry on with acadamic next year. My wife will not be with me and will be travelling in Family visit visa for a year on and off.

1. Could get iqamah for children, but not for wife. Can I get admission in the Tahfeed school for my daughter with just my iqamah and my daughter's dependent iqamah even if wife if having visit visa.
2. I have a 5 year old Daughter and 7 year boy who also planning to put in a Tahfeed/acadamic school where she could do both at the same time. , Same question as above, Do we need Iqamah for my wife?
3. Can you pls recomment whether Jeddah or Riyadh which will be best for Tahfeed / Arabic . They will be here for only 2 years after whcih planning to move to UK. So, need to make most out of this 2 years for learning Arabic / Quran.
4. Can you also pls siggest good Daar in Riyadh/Jeddah for girls/boys pls.

Many thanks

Mohammed