I am going to go the similar route as you with the screen. If your measurements are right above for the stock double din facia then the new screen is 6.74"x4.26".
That leaves about a .5" on the bottom of the din and I bet you could dremmel down a tad more to get a dvd drive in there and make it look right.
So i think this will work
BTW I have a mustang gt on order