In Khartoum you have the only real Mall in Sudan - the Afra Mall. If they is something no one else has in Sudan, chances are good that you can find it there.
Small bug zapper, not so much... just large ones. But I dont need a large one, just a camping model - my container is smaller than most RVs.
Far from a wasted trip though - I got away with a small stash of needed items, in addition to some bags of salted nuts. Not too much - a pair of bowls for preparing foods (beans needs soaking...), a knife for slicing vegetables and other stuff, and a thing of bullion.