Had a good session this afternoon.
I've recorded some audio with PBG stock pickups.
Took the entire bass apart, removed the old plastic dots in the fretted position, filled with timber filler.
Did a small test of Tru Oil under the pickguard and under one of the machine heads.
Added copper tape near the control plate screws.
Desoldered the stock pickups and started to install Tonerider pickups, and discovered that they don't fit!!! They are slightly larger than the stock pickups provided by PBG.
After an interesting moment, and quite few words out loud in ancient Italian, I realized that it wasn't too bad.
Took some measurements, used a pencil to mark the excess, and used a Dremel to gently sand the bridge pickup slot, and the pickguard, they both came out very well!!!
Now waiting for the timber filler to dry, tomorrow will sand the side of the fretboard and add the new side dots.