Don't lower your expectations/standards. You say you're willing to share accommodation with other families and that some of your friends live here.
Ask them to give you an idea how much an independent villa (as opposed to one in a compound) costs to rent.
Depends how many families want to share it.
I have absolutely no idea about families sharing accommodation. Believe me 10000 is nothing in Qatar but if you want to cut costs I'm sure you can.