So question time...
if I were really talented, like a Yorkshire based Jens Ritter, and had built a bass I would have a queue of people wanting to buy it...
If had bolted together an P neck, a P body and made a bitsa P bass or other fender bass- I’ve seen them advertised, and people will buy them...
What if you’ve made something a bit less generic, but not to a pro level? Will people want them, or is it better to split the bass and part it out?