I have an idea.
You should just plain use the
logo. Here's how. I made a quick diagram and made it into a JPEG image and emailed it to Auric and am gonna ask him if he can somehow post a link to it here for you to see. Until it's up, here's a description of what I've got in mind.
The problem with the logo being used in a single form like a guitar body is that it's split into 4 different independant parts. What you could do is create a secondary form that is recessed away from the surface of the main lettering that conforms to the body of it, sort of like a trace-around distance. The first two images in the one I made present this flat-dead-on with two different distances (I kinda like the greater distance better; it makes the points on the 'n' more dramatic). More importantly, you can see my crudely made 3D offset that shows what I mean. This is a means to keep it "one single chunk" that can be the guitar body, but the letters being carved away at a different depth (like a relief) can present the logo as it's meant to be seen, although it surely be easier to cut these forms separately then attach them to the single-form backing. You could even paint to greater effect to make the logo jump out.
I hope with the diagram this makes sense.
But, dude, I'd not stop there. I'd use some of those electroluminous wires to give that sucker the punch it deserves too! You could run the power invisiblely along with the audio cord in some clever way.
What do you think?