Clear plastic vacuum lines seem like a cool idea until the heat/oil make them swell and discolor. The PO of my mx6 used them on the catch can and they're swollen as hell now.
I only used the clear line because the black stuff they gave me didn't fit on the metal tube attached to the strut tower bar. I had that laying around. It needs to be replaced soon by something that won't kink so easily.
You seem to have all nice'n'clean engine bay guys!!! Here's mine, looking to do an engine bay clean-up and a partial wire tuck this winter... and maybe a less tired and much cleaner ZM.