I like it. I had thought about mounting the longer HAKA's right next to the hull so you could just climb out on them from the rear seat, but this would not give you the weight out where you need it.
I like your setup better (with the HAKA's way out over the AMA's), it looks like you can easily get out there when hiking (at time 1.50 into video), that looks to be the perfect place to sit when hiking out (just behind the rear AKA).
Are the HAKA's 8 ft long, the length you have looks to be about the right length. I also like your tiller bar.
I was thinking of using 5/4 x 6 x 8ft pressure treated deck boards (@ 3.97 ea)
( http://www.homedepot.com/Lumber-Composi ... reId=10051
). 4 boards total (2 on each side). I will probably go for the ten footers, then cut them a little shorter to suit.
I'm hoping I can sand them to get a nice finish then put a urethane coat on (so they don't look too green). It will likely be a bit of work cutting a bunch of slots into the boards.
Now for sure this is my next project, thanks for sharing.