Yes, you ca sell almost anything on eBay....
This auction allows you to utilize this blogger for 3 months. He will produce between 5-10 posts a week. In addition, the blogger will work with you to see what potential there is for blogging for you and your company - in effect acting as a blogging consultant for you for the period.
If it is a fit, the blogger is happy to negotiate a deal to make the position a more permanent contract position for a reasonable fee.
Note: I have explained my reasons for doing this more fully at my blog.