Looks like you could do this with just steps 9 - 13. Remember to cover the blank soldering spots with shrinking tube. Than cover up the whole cable over the spot with some shrinking tube too.

Because i had problems and the touchscreen still sticks on the glas, i highly recommend the following video!

It shows how you separate the whole glas - not just the top, edge and side. You have to unglue the the touchscreen too!

http://www.youtube.com/watch?v=ANL9MgegX...

Here you can see how the touchscreen unglues from the glas by heating the glas (1:40) (german):

http://youtu.be/icxls5923O8?t=1m40s