Just to give you a little hope, last year I went on a similar quest to find a guitar amplifier that was sold with a specific guitar. I had purchased an orphan guitar with no amp and there were only 45 or so made and only in 1937. I imagined it would be a nearly futile search, it I found one, and it was even within driving distance of home! By the way, the guitar itself is even rarer than the amp. Gibson built 3 and one is known to be destroyed in a flood.
I'm just saying, I also love my 7 1/2" Ruger Max (it's not the one your looking for though) and these needle in a haystack searches do find what they are looking for especially in the internet age.