ORIGINAL: joelansing
Would just moving my 3.2oz battery way back into the end of the tail work?
Yes.
Cut a hole in the top rear sheeting and velcro your battery pack back there. CA some sticks in place to keep it from shifting, then cover the hole with a bit of matching Ultracote.
Bolt pattern for the GP .40 adjustable mount is a close match the bolt pattern of the H9 mount...