Your collection is amazing! Here I am, the poster who is convincing everybody to let go of the items they don’t really need or seem to want badly enough
The ZCP is adorable and a fairly practical piece, I’m a fan of having an actual wallet instead of a key pouch because I don’t like my bags or SLGs to look stuffed! That being said; you have two items with the Venice print that you love, are you sure you would use yet a third that you don’t? In my opinion you’re better off sticking to your key pouch or at most getting a plain canvas/ leather ZCP for its functionality - either the Epi leather, which comes in a pretty blue colour as well (Blue Jean), or the plain monogram/DE/DA, or the giant monogram if you can find it, or even the Shanghai print one (though I do think having all SLGs in Christmas 2019 animation is a bit overkill). I can understand feeling like you need to keep it because of the effort you put into getting it, but if you don’t love it you won’t use it. Maybe you can just enjoy the thrill of the chase and the satisfaction of knowing you tracked that elusive piece down, but return it and use the money towards something else. I fear that if you consign it you will take a decent loss - especially since you will have to pay commission/listing fee to the consigning website.
Oh, and one more thing: if I wait til my birthday in May, it gives me a chance to use the Emp Key Pouch. Perhaps if LV has a red vernis ZCP in stock at that time, I can consider that as a possible next piece.