I purchased a PR2 expired domain from GoDaddy. Its my first time buying an expired domain, so I am wondering what I should do next? Assuming the PR2 is legit (i checked multiple times, following different sources to ensure the PR is legit). How can I sustain its PR for next update? Should I be rebuilding the same content as it once had (using wayback machine as reference) - or is it okay for me to build a completely new site with new contents on it? Please advise. Any inputs will be appreciated.