hi friend, it also depends on what type of accommodation you are looking for. in lusail area and surroundings on the city side (Al Markhiya, Gharaffa, etc) you can find lot of renatal villas on individual or shared basis. it will work out much less than the budget you mentioned. but if you looking for fully independent rented villas in the lusail surroundings rent will be around 12k to say the least.

but if you are lookin for an 2BR apartment/flat, then you may have to look little closer to city (Al Sadd, Khalifa, Bin Mahmoud) or Al Khor area.

DPS as I know is quite far from Lusail and is on the other side of the city.

So you need to prioritise on who will travel more - you or your kids? :-)

hope this helps