Here's a neck shaping jig that will give you all the space you need to carve the neck.
Not a big deal as there are a lot of neck carving jigs around. But, this jig accepts all kinds of headstocks whether they are straight or angled. It can also be used as a stand to dress the frets.
You will find a videos below that will give you an idea on how to build this, if you want to.