Looking for a 63 Pontiac Catalina convertible

I'm normally an aviation/space modeler, and this is actually for an aviation project.  NASA used a 63 Catalina as a glider tow vehicle.  Here are some NASA photos of the car:

Are there any kits of the Catalina?  I would prefer 1/48, since the lifting body kit is 1/48, but any scale will do.  Since I'm not a car guy, I would also consider any other model/year that looks "close enough" to the 63 Catalina.  (Blasphemy! )

Thanks for your help!

Peter