Wiring help please

So I spent some time with my wiring this week. I found that the used engine bay wiring harness i bought was only one of the three groups in the engine bay.

I also found these octopuses ...mind you, after all these years you expect some buggering ... We have a lot of the wiring straightened out now....I am not sure what to do with the parts we don't use. For the time being though, we will do nothing. The pictures: