I am looking for buying an expired domain in my niche with my keyword in it (event blogging) and making a niche site of it to be used for building either tier-1 or tier-2 links. Or maybe for 301 redirection. I have one in mind that expired half a month ago, with a PR of 3 and 5 unique domains pointing to it, 3 of which have good CF and TF. The thing that interested me is that it had a post that matches one of my keywords and has a backlink with TF-11 CF-26 on it. I am considering buying it, however, I do not know anything in expired domains, hence I provided the details. Should I go for it? Please help me.