DotNetNuke NBStore eCommerce Module

Our company produces web-based solutions in DNN CMS. We are developing an NBStore project and need help on setting up the following. 1. The store sells two types of products: (1) Food (perishable products) ; (2) Handicraft (non perishable products); 2. The perishable products can´t be sold beyond 50 Km away, because they are personally delivered by the retailer; 3. We need help to limit sales of perishable products beyond that distance;