Just use the PowerExpander, Rx size, add any of the BUS Rx’s on any length of patch lead to get a good RX placement.
Anyway the future is the Mercury, everything in one box, small enough for any sport just like my Joker, Gyro, 15 channels-freely assignable, twin regulators, 5.9 or 7.4v output ( you chose) twin power input, twin Rx redundancy, a box of safety.