-- Last Updated: Mar-16-13 3:11 PM EST --
I too was going to suggest the Delta 12.10. It's one of the few short kayaks that has good volume in the hatches, good stability in rough conditions, and decent speed.
I'm not sure the Delta cockpit would fit you. It's 18" x 32." The width should fit you but I'm not sure about the length. Might depend on how your weight is distributed. "Fit" in this case means ease of entry and exit.
Another short kayak with a lot of hatch volume is the Swift Kiwassa. However, it's very expensive unless you find an old used one in trylon, and I personally think the stability is lousy due to the flat bottom. The Delta is much more stable.