I thought about this last night... (life? what life?)
While I don't think this time span is unreasonable, and while I think carraudio's response is a bit overblown...
If I were in the seller's position, I would be a lot more apologetic. I would be embarrassed that I was not meeting my end of the deal, death in the family or not. I wouldn�t be coming back all pissy to a guy to whom I am basically in debt.