A slight cheat here, in that I'm using a bought-in neck blank. Sapele (not a favourite wood of mine). Still, the faces all needed planing before use, so it's not a complete cheat.
Here the truss rod slot has been cut, and the truss rod fits in nicely
Then you saw it, now you don't ... a fillet covering the truss rod in its slot. First job of today will be to glue the fillet in place, then to plane it down smooth with the face of the neck.
And when it's all planed and smooth, I'll cut out the neck shape, before fixing the fretboard on top. And one fretboard, slotted and ready to go.
It was quite a busy day in the workshop yesterday. Too much beer (is that possible?) combined with a half a bottle of red wine last night has resulted in a slightly sore head this morning ... so today's progress will be limited.