Jim, having worked in the automotive industry for over 20 years when a recall was done, it was done for a reason. I now work in the heavy duty truck industry and the same goes there. I can't speak for the marine business, but the fact that your dealer went out of his way to send you pics and based on your post the minimal amount of space you're losing, I would do it. I ordered a replacement windshield for my crestliner this past summer and I've dealt with Doug, he's a stand up guy. I'd do it.
Jim