I'm looking for a light weight bass, most likely having it custom built, that would have a GOOD sound (running Bart pickups and preamp or as good). Now, I'm not looking for JUST the lightest wood, but need to have very good tonal qualities. Post your advise for body and neck woods below. I may have someone build it for me (as in one of the fine builders on here), or I may use Warmoth parts. FYI Thanks!