[Trevor78]

Let us know how the vent fits. I think it's the same piece another guy did a review on that had all sorts of trouble then gave up and reused his broken original. But I don't know anything about it or se any comparison pics.

The small retainer is #3018715, usually ok when white but starting to get brittle as they turn yellow. A few places sell them in reproduction, white nylon or plastic, likely same part. Likewise, several also sell the aluminium version, tell your friends your build has billet components.