OP - you could likely trade your BACSV 1:1 with a GNVP, but as others have indicated, asking for both of the recent GNVP is never going to happen.
Not nearly as limited as GNVP and i find it hard to believe its "way better" than GNVP. There are about 900 bottles of the last two batches. Don't think this will ever go 2:1. The GNVP is going to hold up a lot better in terms of quality and value. Whatever you give up to get 2x GNVP will easily get you the BACSV.