I would suggest that you buy a cheap rod and reel at Carrefore and then go elsewhere for your tackle.

I'm not very good at directions but if you head to Al Khor on the beach road highway, the one that goes past Lusail, at the last traffic circle before you hit the 120km/hr stretch there is a petrol station with a small shopping precinct.

I bought tackle, a light rod, weights hooks etc, from there on Monday.

Hope this helps.