What finish? Hmmm... either wipe on poly or maybe even Danish oil I hate the dullness of it on most things, but it might suit this well.
Finally got back to it today for a bit. I need to cut the nut slot. Having been putting it off. Was worried about how I would hold a guide straight. Then this morning as I was do it, it suddenly hit me!
Worked a treat being the same radius as the board.
So all done, then roughed out. I started shaping the end of the fingerboard so the strings will curve toward their anchors and not have a hard break angle off the end of the neck.
More to do, but I'm on the right track. Not sure if I'll use that nut blank I made now though. Might be just a piece of Jarrah.