I do full builds, mods, tweaks and what have you.
Personally I really donβt care if it is assembled or made from scratch, as long as I enjoy doing it.
Whilst I am relatively capable, my full builds are not Ken Smiths or Wals, nor would I expect them to be and in turn I would not judge anyone for using parts instead of building things themselves.
It is so dependent on time, money, equipment, talent and skill. Not all bass players are equal, but they are all bass players. Same with bass builders.
So as long as people are transparent about what they have done I have zero issues at all.
And mind you, many custom basses are made by CNC ... so you should not even attempt to draw a line.