My guess is NO. It is considered a craftable major artifact (similar to the Ironwood Crown, Bramble Coat, Stitcher's Mittens, Luminous Runeblade, etc..). You do not get runic bonuses when crafting them, but it just happens that the Darkwood Armor inherits the material properties of the wood.
Like Old Man said, it sounds like a job for TC.
Stayin ALive,
BG