I agree with Cadfael: The about pictured vehicle SHOULD be called a Ranchero, not a Maverick. The Ford Ranchero was the car/truck equivalent to the Chevy El Camino.
The Maverick was a small sedan in its day. My grandparents on my mom`s side had a `70 base sedan, as did my cousin, a `71 Grabber with a 3-speed manual tranny and a 302 V-8.
That seems to be a common "problem" with USA vehicle manufacturers trying to recycle/re-introduce their own copyrighted vehicle model names from the past to "new" vehicle designs. Copyrighting of ANY name has become a legal nightmare for number of products, not only vehicles.
Then again, here`s some vehicle names you probably will not see in the foreseeable future:
Ford Edsel
Ford Pinto
(Since Ford seems to eschew making sedans and the Mercury brand has been shuttled, model names like Galaxy 500, Fairlane, Futura, Murauder-Montery, Falcon-Comet, LTD, Grenada-Monarch, Grand Marque, Crown Victoria seem destined for historical reference and legal retention)
For GM it`s:
Chevy Vega
Chevy Corvair
Cadillac Cimarron
Buick Lark
(Buick Ion from the now-defunct Saturn brand seems more likely for a new soon-to-be-introduced small electric SUV.
Chevy will use the name "Current" since Volt and Spark is already being used internally.)
(Same could be said of non-existent GM brands and sedan names like Wildcat, Grand Prix, Trans-Am Firebird, LeSabre, Electra, Catalina, Bonneville, Phoenix, Fiero...well, you get the idea)
Well as for as the REAL question of the this thread topic as to what to do with the decals on this First Edition Maverick, I would think there are coatings specifically designed for matte finishes that these decals may be made of. Maybe Detail 512 can answer that , since he owns Dodge/Chrysler performance vehicles and details such vehicles for others with such graphic decals