I dont have a specific tutorial, but i would do it like this:
if you have basecoated it black, i would do a layer of dheneb stone first. if you dont have this color, just use bleached bone for a few layers.
Then i would cover it with bleached bone and let it dry
I would follow it with a wash with devlan mud
When that wa dry i would highlight with bleached bone, leaving the wash showing on about half the surface
then an edge highlight with 50/50 bleached bone and white
For the text, just try to do some horizontal scribbled lines. individual words and letters are often to much work, and dont look very good anyway.
best of luck to you. if you try it out and then post a pic we might be able to give more precise feedback.