Sounds like a great idea. I looked at the pic you have posted. Is that on the 16 footer? Mine has about a 4 inch pvc pipe that goes from the cabin all the way back past the shelf about 5-6 inches below the top of the gunwhale. I wouldn't have room for that large a hatch unless I not only cut a hole, but cut off the pipe as well. Does your 16 footer have that pipe? Where did you buy the tackle hatch. If I could make one fit, it would be great.