So here is my parts stack knob replica.
I tried the Fender Flea bass - essentially a '61 replica relic and I thought it was absolutely perfect for me... apart from the mechanical relic work and rather grey faded pink which I know some love, it's fantastic. It has a really wonderful aged neck, great Fender '64 Pure Vintage pickups and proper USA CTS Stack pots.
So I waited to find one, and I bought one used last year from a West End theatre musician locally for a very good price with hard shell case - to then customise it to my needs. To be frank, once I'd got the Flea used it for some recording and it is was so good I was in two minds about breaking it up. But I didn't like the finish much and I really wanted it to be aged Oly white!
Rexter Guitars https://rexterguitars.co.uk/ I have worked with a few times and Jon there does lovely thin nitro finishes the way I like them to my specs. Plus he's a lovely guy to work with. (no affil). So I did a bunch of research on the early '60s stack knobs and sent him some sample Oly White pics I liked and described the way I wanted it aged. So I commissioned a replacement body from him (the original Flea I will sell - ping me if you want it).
I really think he did a great job (as usual), a hit of yellowing, fine checking, light distressing... so this build is a Fender-Rexter bass. The body, and hand made made tort guard are Rexter Guitars, Fender Pure vintage cover parts, aged wood pull bar, natural bone nut cut cut are by my me. It plays and sounds great. Link to a set of pics https://imgur.com/gallery/GFXN9FU