about the ebony,
there is a place south of Ivarstead with at the bottom a lot of skeletons and a draugr or three with a boss in the middle. there is also a dragon and a long staircase with at the top a draugr death overlord. he is not really fast so if you just take him to the edge of the staircase, FUS RO DAH him of. the fall will kill him (if he falls straight down, an ddoesn't land on the rocks) and you have a free Ebony war axe