don't worry about the things...

just walk in to Najma souk and you will find so many guys easily. Better to negotiate with them and be sure to take money before removing the items from your premises, because they used to bargain on the negotiated price after loading them into their vehicle.

if you know hindi it will be very useful. most of the guys form bangladesh and they mostly speak hindi.

NOTE: you will be able to sell the items around 10-20% of the actual price you bought.