OP here; I also have ‘14, ‘15, ‘16, and ‘17 CW BBBW or ‘16 Cassian Sunset bottles I would trade along with the BBS. Ratio would have to be discussed depending on what you were interested.
I would trade Central Waters Rye Battel Stout 1:1 for CbS also.
I am not currently looking to trade any anniversaries for it as it looks like the trade value for CBS is not going to settle any higher than $4$ due to the very high amount of it in production. If that does change hen I would reconsider.