@cyclair I have never created a theme, but it seems to me that this page describes how to setup sections for metadata. Have you tried removing the sections for both the labels and the data (ie: md_lbl_rating, md_rating sections)? I think you have to make backups and try this. It will be trial and error, especially to get your positions correct since you also said you wanted to raise the text. There are no simple answers here. You will need to get in there and make adjustments.
Also, I tried clicking your pastebin link and it looks like the XML is in a different language than your long post. Did you know you can go back and EDIT your long post? Folks might be more inclined to respond if you clean up that first post a bit.