I made up a plate that is fixed to the top of the the mounting plate above the steering servo, at the front of this i have a AR7000 Rx on the top with the ECU battery and a 2000mah Rx battery beneath the plate. The pump is to the rear of the pod fairing with valves just in front to the right if the NUAT, you can see where the ECU and the mini I/O board is and the switch is accessed through a small hole in the side of the pod. Has worked out well CG wise.