Ordie, there was another class of CBU dispensers in the Vietnam era, used in theatre,,,,,it was mostly USAF,,, all the weapons were based on the SUU-30 dispenser, with different bomblets, and various fin configurations
I wouldn't have called the -55 a CBU myself,,,,,,since as you say, it is one large container, not a shell full of smaller weapons (which is what a Cluster Bomb Unit is/was,,,,,,a Cluster of little Bombs, loaded into one Unit)
okay, then, if a person wants to build a Pony with a CBU-55, the place to get one would seem to be the Academy A-37B models
the fires that resulted in the removal of Zuni and Napalm from the decks were the Enterprise, Oriskany and Forrestal,,,,,I have no idea why that page would say Constellation (to be fair, it does say "accident" not fire,,,maybe there was some Oops that was almost a fire?)
a Pony with a -55 would be sort of cool in one aspect, it is usually "wrong" to put weapons labeled USAF on the stenciling on a NavAir aircraft,,in this case you would WANT people to notice it, haha
Rex