I got just what you need!
I just replaced all my vacuum lines the other day. I bought a nice blue silicon hose kit. Looks beautiful under the hood. Spiced things up a bit. These vacuum lines are a pain in the ass to do. Some are really easy, and others you cant see where they end or start, so you just have to blind feel and replace. I noticed a difference in my idle as well. Seems a lot smoother. I will take a pic sometime soon to show.