Sumato - if you fit all parts on a 7.75" x 10.25" rectangle, everybody will be able to print without any problems. This size assures perfect fit for both A4 and Letter size paper.
If you issue kits requiring 11"x17" paper capable printer, this could pose a serious problem since most people simply don't have such printers. Second issue is availablity and price of cardstock in this size....
Every card model, even the largest, can be divided in such a way as to fit on the smaller size paper. Roman from Digital Navy did that with his ships and my Repulse and upcoming Hiei are done exactly like that.
PS
Claude looks really, really good :grin:
Now...If you think about other Jap planes, maybe I can help with plans....