Have experience developing wireless charging systems from 3W to 15W. The charging station should consist of two parts, I understand correctly? One part with battery and wireless charging module and charging station. What information do you want to transmit on bluetooth? If I understand you correctly, you want to make a power bank with wireless charging of phones. We can develop device cases, circuitry, PCB, firmware, assemble and debug prototypes. Help in mass production. Term and cost approximate. We will be glad to help you.