Looks like you have not gone through the "RC in Qatar" board here. All your questions are answered there. In summary,
1) Contact and location information of "Pro Hobbies" :
http://rcqatar.com/rc-in-qatar/hobby-shops-in-qatar/2) Location of Al-Khor RC flying field (including annotated map) :
http://rcqatar.com/rc-in-qatar/the-only-official-rc-airfild-in-qatar-the-al-khor-airfield/What is closed now in the Al-Khor airport itself, which is now a small airport for real aircraft (small ones like Cessna etc). It was an RC airport before. The Al-Khor RC airfield mentioned above is separate, and is the only official RC field in qatar.
Now sure who in the Al-Khor community is into flying, but you are pretty close to the only RC airfield in Qatar !
