Schedule Regular Posts from Templates

Good morning all. I hope somebody may be able to help with this.

I’ve set up a self-hosted wordpress install and have it pretty much configured how I need it, thanks in part to the information found on these forums and other wordpress sites. As well as posting to the site I am posting to twitter (WP to Twitter) which is feeding into Facebook and also using RSS via Hootsuite to feed Google+.

I am going to be posting regular new content but also want a certain number of posts posted on a regular basis or scheduled to post through a list of them all and at regular intervals.

So I will have templates: ABCDEFGHIJK
And might post at: 06:00/12:00/18:00 daily

From the searching I have done I have found a couple of ways to do each part separately but cannot find any way to achieve it with minimal input. I think the best solution so far seems to be creating template posts via a plugin and then scheduling a week in advance via the standard wordpress scheduler. I saw one plugin which allowed you to repeat posts already posted but a) it had no reviews and b) would still require manual scheduling at some point.

I’m wondering if anybody has ever ventured down this path before and, if so, what options they found and how they worked out.

Thanks for any help.