I think the enclosure are to dark. So i looked at thingiverse.com site. There i found i really good Idea using IKEA led strips. I had to make a few changes to some dimensions.
This is what I ended up with:
Then I read that the cables to the printhead needed some support so that the wires don't break. Found one solution thingiverse.com but that did break under install so i did a few changes to that aswell.
Then I bought some filament in a local shop. There the spool had a 20 mm center hole. So then i made this addon solution to the already existing spool holder for enclosure.
Ended up in this solution: