I had to lengthen the mount for the recoil servo because it was impacting the Tamiya rotation gear box when the gun was elevated and the turret came around to certain spots. This shows the new servo mount and the draglink to the barrel
Here is the whole gun mount installed in the turret. Rather than glue the rotor into the turret, I was able to screw retainer brackets to it to hold it into the turret.
https://www.youtube.com/watch?v=YUDQVaWwYpI