Double Bass Help! Need diagram/schematics for WAV4 electrics!

[samsporter]

So I was having a smoke break in the alley behind the scooter shop I work at. A man walking his dog approached me and was asking questions about scooters. By the end of the conversation he asked me if I knew anyone that wanted to buy an upright bass. Interest piqued, I convinced him to go and get it. He came back, and I negotiated a $350 NS Design WAV4 transaction.
Yes $350,- WAV4; stand; bag; bow; bag of electrical things.
Here's the catch...
The previous owner to the guy I bought it from butchered the electrical system in a bad way, and the guy I bought it from did not improve the situation. Hence the bag of POTs, and switches. I have all the components, but I need a wiring diagram/schematic diagram to put back to its original design.
Please help me make this what it once was. I would greatly appreciate any pics of the inside, or a schematic diagram or wiring diagram if possible.

Thank You,

Andy

 

[DoubleMIDI]

Probably not what you want to hear, but the best sound you can get without a impedance buffer first (which a WAV EUB does not have) is removing any electronic components and directly connect the piezo to the output jack (and then use an external impedance buffer or high impedance preamp to make the signal stable enough for an amp input or EQ).

 

[equill]

You could email thinkns.com and ask; their customer service seems to be pretty good.
I'll try to get a decent pic of the inside of mine, though.