We are going to go ahead with the plan. Just from posting this question in several forums we have already picked up 3 clients.
It seems that there is a demand for affordable writing services. Just google
PR services and take a look at the costs involved.
I was paying big bucks myself in the past because I cant write anything worth a penny. If I was doing it, I know many others are.
We will be focusing on the actual writing as the core product, submission services will be available as an additional option.
Thanks for the tips guys!