1968 Dart GTS 340

That's what I would do, Doug. Don't offer up the title, as it seems as though DMV does not require it.
Some states have titles that allow for more than one re-assignment. If that is the case then you can tender the title to the new owner, a Canadian resident for example. This is why many buyers of titled cars ask the seller to just sign the title and not put in the buyer info. Made to order for guys that know they will be flipping a car and never registering it in their own name. Good luck with the sale, Doug.
Fellow FABO members, I saw this car in person. It is a good buy.