Nothing looks better on a Z than slots. I 3d printed my own from my own design. Not quite the same as yours but close. IIRC I made a lot of suspension modifications to lower it to the ground. You can have the whole car if you want it.
The Lindberg '64 Plymouth hardtop has the weird angle at the rear of the roof. The Lindberg 64 Dodge is a sedan. It's a long shot if they could be combined.
I'm on a mission to build cars I've owned, so my bucket list is a bit more obscure.
58-66 Dodge Town Wagon / Panel
73 Chrysler Newport
75 Plymouth Fury
71 Buick Sport Wagon
Ford Granada
1st gen Dodge Dakota