Authenticity question?

[Gene]

Ok so here's the deal, i'm taking a truck that started it's life as a custom 10 long bed truck that I had at one time converted to a 2wd SWB Cheyenne truck. Now ten years later, I am building a 4x4 SWB truck using a factory 4x4 chassis that I will be setting my cab, actual shortbed that has not been cut down, and everything else from my original truck. Here's the question, I am going to change colors, but other than that I am going to make a 4x4 Custom 10 truck out of these parts. I plan on using an aftermarket SPID label and was wondering if it is ethical or even legal to label this truck as a 115 WB custom 10 4x4? I never plan on selling this truck, and if I did I would be adamant to the buyer that it is not original. I know Camaro owners build Yenko and SS clones everyday and try to pass them off as original and I am definitely not trying to pass this truck off as factory and am only making this label for my own benefit. SO is this something that would be considered cool, or no?