Alby,
Actually, the markings and armament options for that kit are incorrect, at least for "Ace of Spades", which flew WITH miniguns. The kit decals are inaccurate too. I don't have my Charlie here, otherwise I'd see how I put the minis together, but from what I remember, it was pretty straightforward, except for those darn vinyl ammo chutes. "Surfer", if I remember correctly, flew with Hog pods and the chunker in the nose, that's the other marking option for the kit.
IIRC there are shots of both birds on the 174th Association's website. Both were lost during Operation LAM SON 719 into Laos in 1971.