Here is my 62 Fender, originally P but now PJ, bass modded by others and me over the years. I have owned it since around 1983.
I had no idea of it's potential value back then and sent it to my favourite Luthier, Alasdair Watt in Aberdeen (now sadly no longer with us) to make it into the all round bass that I needed for the work I was doing then.
He shaved the C neck down to Jazz like proportions. He added a bridge pup (I think Kent Armstrong) and put an out of phase switch in for added tonal range. It had a beat up natural finish when I got it. Alasdair painted it sunburst. It had Schaller machines added. I had the original rusty Fender bridge re nickel plated and that's what is on it to this day.
The pots have been replaced but I still have the originals (see pic).
I took it to bits in lockdown (see photos) and had the wiring for the original split pup repaired/redone. I replaced the perished rubber pup beds which had no spring left in them. I shimmed the neck and removed the out of phase switch which was rarely if ever used.
I discovered an earlier mod where a pup had been added right beside the neck. This had gone by the time I bought it in '83.
I sometimes dream that when I shrug off this mortal coil it will be buried with me.
Me with the PJ in '88