Looks to me like it is an Ampeg baby bass body with a neck replacement. It could be a "one off" custom, but I'm pretty sure it wasn't a production model anything.I remember hearing about it, and it was a custom using existing parts.
Buck Trent, who played banjo with Porter Wagner stopped by the hotel I played in 1970 and told be of the Hee Haw concept. He went on to be one of the music directors and an "on camera" regular.
I thought the idea was rediculous...old men popping out of a cornfield, surrounded by younger women with low-cut tops. It would never fly, I thought. He asked if I was interested in talking about a staff post. "No way", I told him!
That's one of many times I was dead wrong about the music business.
Then there was the time I wouldn't even consider talking about joining another local band who became major charting country hit makers. All the guys in this group now get royalty checks amounting to twice my annual income.
Man, I REALLY don't like country music!
Oh well!
"Redneck Russ"