Hey KW,
I built a KW for my friend who commanded the Cavalry Squadron at Fort Drum. The MRC/Academy kit is great but watch out when you put the front wind screen in. I have another one sitting on my "to do" shelf while I try to finish Kangnam's AH-64D.
A good diorama: How about the KW working with a M1A2 or M3 from OIF. Have the KW on the ground with the left seat pilot out talking with the ground commander.
KWs, as the Cavalry Divisions aerial recon assets, were a major asset that helped 7th Cav make its run from the border to victory for 3ID. Just an idea...