Hm... I was thinkig of something similar.
Like this:
1. take
original article and remove 'newsblock' tag (basicly remove right column) > the result:
article[1]
2. take
original article and remove everything but the 'newsblock' tag (keep only right column) > the result:
article[2]
Combine in this order:
article[1] +
article[2].
Now...
how to do that?