look at the WS Ride 135 again, its 85lbs, shorter, close or comparable in weight capacity and may not have to rebuild the trailer box, same thing about the WS Commander. 16' of yak is a lot to deal with, if you fish "open" water alot, won't be a problem, but the longer yaks are more difficult to manage in more narrow water. TM is a possiblity on both, especially the Commander. It even offers the option of a higher seat just by sliding the lower seat back out of the way, don't have to "re-engineer" anything if you don't want to. A 16' yak would almost certainly require a trailer to haul it back and forth even on home waters, while you could probably haul any 14'er way desired.
Check out ACK.com, they offer free shipping on most yaks, some exclusions apply.
GO BIG ORANGE !
I meant to behave, but there were just way too many other options available at the time.