Ok, quick update. It turns out this guitar really is my xmas present. I managed to sneek the neck out of the box earlier this week and shape the headstock before it was wrapped up and placed under the xmas tree..
So I went for a trad 'G' style shape on this one. Took a bit of tweaking to get it looking even on both sides of headstock (Left and right, front and back) but got there in the end. I ended up using some 120 grit paper wrapped around a pencil for final shaping.