the width of the fretboard at the 24th is 3 1/4 (the string spacing at the 24th fret will be less than that) I modeled it (so some degree) after carvin's 6-string basses. I have small fingers, so I want a bit narrower neck. To answer your question, I was thinking northern ash if I could get it. I like an instrument with a bit of weight to it. At this point, I'm really into the idea of usng purpleheart, but I'm still looking around and keeping my options open.
Also, any thoughts on where I can get a relatively inexpensive purpleheart body blank or enought to make a body for this bass?