I'm doing the AC-130A version, after the one nicknamed "Thor". If I'm not mistaken, the one at the AF Armament Museum is the very first C-130 the Air Force took delivery on. Had quite an impressive record before being retired.
Unfortunately, "Thor" wasn't so lucky.
=======Yes, I'm using Bondo putty, bought at Advance. Of course, after I'm about done I find out about something else that's supposed to be pretty good and doesn't shrink. Maybe I'll try that next time. Primed my cowlings tonight and will have to give them a shot of putty here and there.
Randy