mmm machan food walata uyagena kawoth 200qr wage shape wenna can if u take food from out side it will be minimum 350qr90not expensive food) ,internet if u share with sm 1 arround 100qr if u use ur own connection it will be minimum 200qr and its up to ur net speed
normally company's are giving accommodations if not if u need good rm for ur own u have to pay near 1500-1000qr
if u share with with people it will be reduce and no any privacy there
transport withot vehicle it little hard at doha taxi charges are very high and buses i don't like every tiime many labour working people with there natural smell

phone charges for me 250qr and up when i have good controle if not it will be more
so my recommend if company giving you accommodation ,travel (local and air tickets )
salary should be more than 2000qr minimum other wise there are no saving for you
these all things are my own vision better if u ask sm other people also ho living Qatar
this guy also living qatar
http://www.elakiri.com/forum/member.php?u=351893
all the best !!!