Good job!
I agree that the vacuum lines are an amazing rats nest, complete with hidden and brittle connection points. I helped one of my sons do his vacuum lines this summer.
Since you have an order from Tune My Euro, I assume you have seen his videos? He has an excellent one on giving a step by step approach to changing the vacuum lines.
The link is here.
https://youtu.be/kuXEa1efpxQ
Love it when he goes into detail on how to get old brittle lines off without snapping the plastic nipples. And he's got a great tip for using a pick to get under some of the electrical connections points and releasing them. Some of these tips are reinforced on the Das Projekt vids as well. Pure genius.
As noted above, the other great resource I found on the topic is the Youtube site of Das Projekt 5seven. He has a 2 part series on the vacuum system. The links are
here
https://youtu.be/Qer7vfbx77c
and
here.
https://youtu.be/5-1LwCZrGQ8
Really great information on both of the sites. Watching the above videos made the work so much easier. Without them I'm sure we would have (at best) taken much longer, or (at worst) "fixed it till we broke it" (as Doug Huffman might say). The only thing I did that wasn't covered on the vids is use blue painters tape to number all the lines, and used a black Sharpie to number the connection points on the vacuum box. And of course I took a bunch of pictures beforehand. Not wanting to ever have to deal with brittle lines again, silicone replacement hoses were used.
TriX5 - I realize you probably watched the above vids, but the information might be helpful to others who are contemplating this work. Again, kudos to you!