Help finding a specific model

There is a shop in St.Paul, Mn that has old kits. Not sure if they have one but you can give them a try. Its called Scale Model Supply. Good luck hope you find what you are looking for.

Maybe this

Plus this (pricey)

Don't know about availability, but there was a '67 Ford with a service body.  Looks like a 4x2, but single rear wheel.

Main differences between '67-'72 was the grille and trim levels.  I had a '70 Ranger back in the day.

Thanks for the info, sounds like he may have to get the truck and add the towing gear onto it from another kit.

I'd do what keavdog suggested and combine the truck with the wrecker

That's what I did to make this International Wrecker

Depending on his skills, might be able to try scratching the tow bed.  Most were built up from flat plate.  The hardest thing would be the boom and winches.