Hey guys, I got an Alverez 4 string bass, it is a p/j style bass with the jazz pickup on the bottom, and the P pick-ups in the center. And I want to upgrade it. I wanna buy a new bridge, new pick-ups, and get a humcancelling ceilling (not real sure what they are called). Maybe even a new neck. So, can y'all give me recomendations on the stuff to get, and with the price if possible. Thanks!