I was reading up on the link. I have done all my modifications in the editor and I have not that much normal html css code experience.
To me it seem the smartest way is to rename my current theme, upload the recent update and create a child theme in which I can put all of the parts that im certain I will keep from the current theme. Then i will just have to modify or translate each part piece by piece.
Would this work?
aggregate from elegant themes.