Oh sure - like most burls, the Jarrah has some voids. We're planning on filling the voids in this piece with an Ebony dust/epoxy mixture - should coordinate with the Ebony neck laminate and fingerboard, and accentuate some of the interesting things about this piece.
We're thinking this neck will make a nice warm, rounded fretless sound, with the excellent sustain of the Ebony. Pricing depends on the model, Susan can answer any specific questions by email.