Well I have the modifications done. I got the 6v in and the wiring is tighter, with the rx now under the tray up in front of the servos instead of back by the motor on top of the tray.
So the new set up, from back to front, motor, 6v battery, servos, rx, bec.
Top side of the tray.
Clean and tight.
Slides in like butter.
They say that the sealed lead acid batteries are good for a hour. That is going to be fun.
Back in the water tomorrow...two pounds heavier...pics to follow.