Pat has a flower bed that is 111 feet long.  Pat wants to fill her flower bed with plants.  Pat's flowers grow 12 inches wide so she needs to leave 1.5 feet between every plant.  Pat already owns 17 flowers.  Each flowering plant costs $6 at the store,  how much money will Pat spend at the store to fill up her flower bed?
Please reason step by step, and put your final answer within \boxed{}.
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