I have farmed this guy for the ghoul fingers and Ghoul fang sword. His two locations are in a small fenced in graveyard by the Jangolode Mine or in the dust plains where you do your rouge quest for poisons. I have seen him out during the day at the dust plains location. But, he was often at the spot just east of the Jangolode Mine in the fenced in graveyard. The time i could almost always find him there was at night 10:00 server time in that location.