Thousands of makeshift shacks sell beer or cigarettes, and hundreds of oil-barrel barbecues cook jerk chicken and burgers.
A large number of shacks which sell cigarettes or beer can be found here. 
mnli hypothesis: A large number of shacks which sell cigarettes or beer can be found here.  premise: Thousands of makeshift shacks sell beer or cigarettes, and hundreds of oil-barrel barbecues cook jerk chicken and burgers.