I saw that in the TROG coverage, however I have not seen how the drivetrain is hooked up.
What’s up with the cooling system on the front engine? That is some strange plumbing there.
I also saw that twin Flathead engine truck at Trog West, Pismo Beach, Ca., a couple years ago, and took a bunch of pictures. I may have posted pictures of that truck here, along with many other pictures taken at that event.