How can I delete Eloqua assets on a large scale?

HI,

We are in the situation where we want to delete a large number of eloqua campaigns and their corresponding assets. In short, our campaigns are active for 2 years. We want to delete everything on the 2012-2014 interval, which is a campaign assets. This includes, the program or the canvas, segments, filters, emails, pages, forms, cdo's, lists.

What can be deleted with no problem are shared lists. Others, are like:

- cannot delete a filter cause it's on a canvas;

- cannot delete a canvas cause it has segments and filters (which most often are used in other canvases too);

- cannot delete a form cause it has dependencies like on the canvas for reporting