The former Sears shop in New Hampshire is being converted into a charitable casino. The Nashua Planning Board approved the project by a wide margin last week. The two-story gambling property will be 169,000 square feet when finished, which is expected by the end of next year. There will be over 1,000 antique horse race machines as well as dozens of table games. People still believe that the presence of a casino will clash with other mall tenants.