I had a Sport before my current Revo 11, heck I might even buy a 2014 Sport since I like all the redesigns they did.
Storage was a problem for me with both space and weight limits (since the capacity was 225# and I am 200# already). The simplest and cheapest solution for keeping the catch cold was a large cold bag from the supermarket (publix), the insulated type they use for picnics etc. I would throw a few frozen water bottles in there and it would be good enough for small fish like snappers and seatrout.
When I started catching bigger/longer fish like king mackerel and amberjacks I had to upgrade to a rectangular insulated bag like this:http://www.basspro.com/Boone-Insulated-Bait-Bag/product/72224/
Problem is, that doesn't sit well in the kayak "trunk" if you already have a bait bucket/milkcrate. So I carry that to sea behind the seat with the ends protruding on both sides of the kayak. You could also get a Precision Pak http://kayakfishingblog.com/wp-content/uploads/2011/09/YakCatch-Fish-Bag.jpg
insulated bag and find a way to lash it down to the front of your kayak, but you'll be limited to a small one.
What kind/size of fish are you catching?
As for the pliers, I just stuff them in my PFD.