spreporter - 6:42 am on Jul 20, 2012 (gmt 0)

You didn't say about the new content/niche that you will build for this domain. If not the same niche, you should not forget that the PR comes from relative adult pages, in order to create a non adult site those links have to be deleted and PR will decrease, IMO I wouldn't spend the money and effort because the domain has been characterized as adult, unless you want to continue in that sector.