Welcome to the forum namhelo!
I'll start by asking a question: You wouldn't happen to be Mr. John Brennan of the 114th AHC?
Here are my answers to some of the questions:
2) What three Army aviation units in Nam replicated beer can art onto their gunship rocket pods?
92nd AHC, 335th AHC and 189th AHC.
3) What brand of beer were they?
Coors, Budweiser, Pabst and Shlitz.
6) What in-country Army aviation unit commissioned the Disney studios to design a platoon insignia for their gunships?
Not sure about this one, but I think Company D, 229th AHB (Smiling tigers).
8) From 1968-71 the nose art featured on this unit's maintenance platoon copter carried the only authorized female nude painting in the history of the 1st Aviation Brigade.
68th AHC had an authorized nude nose art on their Tiger tail Huey.
10) What in-country Army helo units were the most prolific copter nicknamers, 1961-73?
175th AHC, 114th AHC, 335th AHC, 176th AHC.
Come on guys, start answering and make us proud :)
PS: when do You expect this book to be published?