I wanted to check on the viability of building my own blog network. I had a client who fell through (actually went to jail, probably a good thing they fell through) and I've already purchased aged domains in a variety of niches, but still centralized around business and marketing as well as lots of quality content for the sites. We were going to be building up some quality blogs together and now I don't necessarily have time to invest in the aspects he was planning on so I'm wondering, could I turn these into a small blog network for linking some of my own site?
I'm wondering if I take all the necessary precautions (get different hosting on different providers, use different themes, different permalink structure, private information and so on) is it worth the risk? I've already got the content and domains purchased and could put the hosting on month to month so if it gets deindexed then so be it?