The White 7000 was a totally different truck. It was the first truck to use composite materials. The cab had quite a few fiberglass components. In fact to the serious big rig enthusiast, the White 7000 looks nothing like the Dodge or Ford.
IMHO, Testors has made several decision that were bad for Big Rig modelers. They displayed a Peterbilt 362 cabover, yet never went ahead to produce it. It seems their bias towards cars has cost truck modelers at least to interesting kits.
This subject has been covered many times on the Big Rigs board in the past. And at least one very good LTV 1000 has been displayed on this board. One of the best is by modeler Bitner.
Nice! Looks like you modified the Revell KW wrecker. I wonder why many more truck modelers don't use LEDs. The Italeri kits are just about made for this modification. The Italeri Facebook page has a number of modeler's subjects with LEDs.