Sorry, but having fished out of both the CD22 and the CD25, I think not. The raised cockpit floor in the CD25 is a big minus for fishing. Standing below the waterline in the CD 22 is so much better. Better control, safer, and much more natural feeling. No doubt about it. That is the one thing I miss most about my 22, and like the least in the 25.
I know at least one guy has inquired about having C-Dory build a CD25 without the self bailing deck. I am guessing that the raised deck has some structural strength properties that the design engineers felt were needed in the wider, heavier hull. It's purpose is much more than just hiding the gas tank, and if it could be built without it they surely would be willing to do it.
Did you buy that boat??