I have a large selection of high authority non-spammed expired domains all within a particular niche. All of the domains including my money site are in the same niche. Would you say it would be best to either: 1: 301 redirect them to the relevant areas of my money site. 2: build out the expired domains to how they were and link back to my money site. 3: a mixture of 1 & 2 Interested to hear your thoughts and any experience in this method.