That looks like the kit from the picture that I had. If I recall correctly, the pieces he was selling back then were the extra pieces he seemed to have stored in his house.
You can see clearly the white inside coating in the floor tom. I'm not an expert in white Supes, but as with candy apple red, this color and black were offered later in the series, somewhere around 1984 or 85. I have no reason to doubt his word when I spoke to him, so for me, it is possible he spec'd a white kit out for Tama before they offered the kit to the public as one of their sponsored drummers, similar to what Neal Peart did. He said he specified the white inside and, quite possibly, Tama decided to offer the white kits that way. I'm not sure with black whether the inside was sprayed black as well.
I've spoken to other Tama drummers, one of whom was a very early sponsored drummer who lived in Japan. His name escapes me, but he was the drummer who was on the brochure that came with the early kits. I had an opportunity to pick up one of those brochures years ago, but passed on it for some reason...getting tired of having all that paper no doubt! :(
This is just what I recall. I am not a Tama historian.