I have a spare center channel Setup from Bavsound.
Can be used as rear shelf replacement as well if needed.
Will ship it (probably 15$ for North America) from Montreal, Canada
Later edit: as I am not planning to use them anymore, will also sell the rear mids + tweeters
You will get 3 x what you see in the pictures (3 mids + 3 tweeters)
Stock center channel for comparison only.