I know it wont be that hard, it just seems a bit, actually i dont know how to put this, er, odd to me. For all the planning of a jig, its about the same planing to cut the angle in the neck, but you never know, you might really enjoy building guitars and you might want too build another. But its really all up to you, its YOUR guitar, you do it your way. Heres a sujestion, why not just resess your bridge? that iliminates the need for an angle.