K.C., I've solved the issue a different way. I got a separate boat for racing.
That puts me back in the class of people that use the DS for daysailing, and in that context, class rules become rather irrelevant (Sorry, Bob).
Actually, the full relevance of class rules depends not only on whether you use your boat for racing, but also on whether there even is any racing under class rules in your area.
If there's no fleet or potential of one, resale value isn't affected by whether a boat is or can be brought back to class specs.
Not the case in my area, and what racing I've been doing has been "free-for-all", and is mostly done with boats that are "upgraded" in interesting, but usually "cheap" ways. Like the way my current boat has a spinnaker even though that class doesn't know about one.
And so it goes.