I know some people may think it’s a hassle swapping pick ups out etc. And that the bass should be perfect without changing anything. Blah blah blah, but the Sandberg from choice of wood, treatment, fit and finish is absolutely supreme - this is your foundations, walls, roof, everything of your bass - changin the pick up is like popping a new boiler in (but less expensive!).
what you have is the best shell to do what you want, and you can sell on pick ups, if you wanted a specific set and sent it to them they would probably whack them in.
Aguilar do great vintage pick ups, Lollar, Lindy Fralins, EMG GZR, Ulyate Tic Tac, but my fave are Creamery 58 pick ups - U.K. made and stellar - so you could just whack them in and hey presto.
For my 2 pence worth - if you are after a classic P sound - do. It get a PJ (VT) or a VM bass - that little bit of wood routed away and probably some slight extra wiring just alters the sound enough even if you turn them off to move away from a P - Get a VS passive and pop a pick up of choice if what they provide is not your flavour
Just mu Opinion of course - but the bass is killer