Thanks supercobra, especially that turret pic. Now I kind of remember how the gun fits in there. Never was an ordie, but I did work on fire control for 7 months, so I had plenty of play-time with the weapons systems....on the ground, at least. Also found somewhat more info by searching for an M-61 instead of an M-197.
This won't be too bad, then....just build the breech and rotor assembly out of some round stock, add on the gun drive motor and feeder assembly, and snake a gawd-awful wiring harness around in there.
It will be my first scratchbuild attempt, so why not? If I mess it up, it'll just get hidden by the turret cowlings again, lol. Thanks for your continued help, guys.
As for the noseart, I have probably about 10 more photos of good artwork -- just from 269 in OIF. But yes, I am very grateful with the Whiskey sheet that's out right now! Maybe they could put it on a combined "skids" sheet with decals for both some new cobras and some stuff for a 1/35 UH-1N!!