I have a dumb question. Say I'm looking to part together a bass or use parts from a bass I currently own to build a new one. What part of the bass (other than the pickups of course) effect the way the bass sounds the most?? For instance, say I have a new jazz bass with a rosewood neck on it.. But I find a 60's body. Would putting the new neck on a 60's body really change the sound enough from they way it is now to really justify the price?? Or would I get more "bang for my buck" in keeping the body I have and finding a 60's neck?? I hope this makes sense.. I know the ideal situation is to find a 60's body, neck, and pickups. But, I dont know about others, I can't afford that right now.. Any help?