There are smaller compounds around from QR14k - I speak from experience. Two villas recently became available on my compound and I know for a fact that they went for QR14k. We have friends who also moved onto a compound last month at the same price. This price is still definitely feasible. One word of caution you can not compare compounds here to those in Saudi - here they are typically smaller with not as many facilities. My compound has 38 villas, pool, clubhouse, tennis and squash courts and small gym for your guide. Few compounds have a shop - but then again its not a big deal since your wife can drive.

I know Ranco - compounds here are generally smaller but I would say the accomodations are at least as good if not better. Here you have places a lot like Arabian Homes, all the way up to places on a par with Al Hamra, Arizona etc.

If your kids are going to DESS you will be the other side of town from me. I am not 100% sure but that may mean a small premium so perhaps the QR15-16k range others have quoted would be more conservative. I am certain you will achieve this on a compound, if you are prepared to look at stand-alone villas they will of course be cheaper.

Regarding cars you are talking to the right person. I think I was mis-advised on import duty into Qatar so decided to sell my car in Riyadh and buy a new one here. BIG MISTAKE - Doha is more expensive for cars and I believe when I came in last year that import duty was only 5%, lower than I had been told. Make sure you sort out the export/import paperwork nice and early though as I have been told this can be quite a hassle in Riyadh. Servicing cars here is cheap though and petrol not much more than Saudi - 97 octane Super is like 80 halalas per litre, with 95 octane being 60. car insurance here is typically 4% of the car's value.

Hope this helps.