After looking at how the cannon assembly works on the standard Lynx I realized that a hull brace like the FW Cobra would be a great modification.
Stock photo from FW's site, showing mount style I am hoping to build.
Here the mount ring has been completed 100% around the barrel using Pro-Create.
Now the cannon barrel will stay secure in while transporting the model, and the barrel wont droop under its own weight.
Some final sanding and details will follow shortly.