I have an AI and am planning on getting a second for my wife. I also have two other kayaks.
I've been researching trailers which would hold all 4 of my kayaks and the Trailex SUT-450-M6 seems so far like the best choice. http://www.trailex.com/SUT-450-M6.cfm
I realize I'd have to take the amas off the 2 AI's as the trailer crossbar widths are 30" on each side (although the top crossbar is 62.5"). Having (4) 30" crossbars and (1) 62.5" crossbar of storage space total seems to be plenty to hold (2) disassembled AI's, (2) additional kayaks, plus a storage box, masts, etc.