As others have stated fishing is slow to none around KC this time of year.
KK Flyfishers is at 87th (Santa Fe Trail Dr.)and Marty. Probably the best stocked fly shop in town.
Arthur Bryants has 3 locations one is in AmeriStar casino, another is close to Cabelas and the oldest is at 18th and Brooklyn. I like the Brooklyn location best because they still smoke the meat in the same pit Arthur did....
Cabela's is always an adventure...good fly shop there as well.