Tim, I just hung-up the phone from speaking with Butch. He definitely remembers your guitar as having never been sold. He also remembers that all the paperwork was included in the case. He said that only the 5 pin cable was not original.It was not in the case, so he made the one that you have. As to your questions about the blue box, as Paul said, that is the guitars power supply. The 2 1/4 jacks are the each pick-up if you use both. If you just use the left jack that gives you mono (both pick-ups summed). Also the 1/4 jack on the guitar is probably a stereo jack. That is easy to determine, if you plug in a regular 1/4 cord, only one pick-up will work. The batteries on a Series bass tend to run down rather quickly, maybe about 20 hours. I would imagine the guitar would be about the same.
I hope you find this all of interest. Find a digital camera somewhere and post some pics, as Valentino said, a most unusual combination of woods. Although he is not a member, Butch is going to have a look in on the site, he has become interested in the story and I'm sure would like to see pics of the one that got away.
Kenn R.