Sony RCD-W500C Service Jig & Files

Hey All, I've repaired about 20 W500C's so far and have almost equal in backstock needing a service jig to mod the laser output voltage for Deck B to be 100% functional.

What I am looking for is:

Sony CDM65-RBD2 Service Jig Part No. J-2501-223-A — supplied with 9 cables.

I would also love to have the service files that are ran in terminal. Im almost to the point of needing to reverse engineer the jig and make my own console connections etc. I've reached out to Encompass and Sony directly to no avail. I've kept a pulse on the Japanese markets as well as US but have come up with nothing. If you have one, let me know! The laser pickups are MIA or pulled parts for expensive prices.

This is my final Hail Mary before I try to make one myself. Sony did us bad by not having pots to adjust and did the adjustments via a jig... let me know!