Just to set the record straight, that guitar body was the mechanism for my learning a lot of stuff and it never actually got put into service, since the final lessons it taught me involved completely cheesing up the screw extractions when I broke 2 of them off when installing the bridge. At that point I just chucked it. I figured I had paid my 80 bucks for an off brand body specifically so that if I blew it every which way, I could afford to walk away. Much learning there, but not much useful outcome on the build itself.
The India ink idea was itself an attempt to come up with a wholly different effect, but it came out good for the high-contrast grain effect under the dye.