I was inspired by the many designs of homemade outriggers that I saw on this forum, so I tried my hand. You can build these for about $25.
These things are amazingly stable, as you might expect with an arm that is almost 9' long. And, they provide about 100 lbs of buoyancy, which is needed for me to be able to set my 240 lbs on the aft deck. But, the arms need to be that long to prevent interference with the paddle stroke.
Even with the added buoyancy, you can see that the stern has little freeboard.
Here is the sponson assembly:
And, some more information on the float assembly:
I caught this Bass before I made and installed the outriggers. The Bass almost pulled me over, so I decided to add the outriggers, Just kidding. The Bass pulled me around, but he didn't tend to capsize me, of course.
Good fishing to you,