Ok, replacement sander belts have arrived, so, a little more work on the neck.....

Fingerboard......  Now ebony traditionally is black, but it's nearly always STAINED to actually make it black.  this blank is solid, but really lightly coloured.

a little tickle with the sander and it's really pretty.  I MAY stain it, I may leave it like this......

 

then a handy website calculates the fret spacing for a 430mm scale length......