JoeDude, I did a little web search like Kevin too. I found
https://www.daves-classic-cars.com/ which only listed cars for sale, no Trucks for sale at all. It doesn't look like a scammers site, but is definitely not your high-dollar big business model. I also found
davidsclassiccars that shows a number of 1954 Chevy 1/2 tons for sale (scroll down to see more than the top listed truck). None of the pictures matches the truck you posted
HERE.
As to the comment from your local Police officer that he was looking for a corresponding engine number to match the pillar, Kevin is right that there isn't going to be one. Hopefully the next officer they send out will be more knowledgeable of how these old trucks were numbered, or at least willing to look at the information from the Heritage Center documents. Keep us posted on how this goes.