Can I instead maintain an anti-index of all the books that _would_ be in my antilibrary if I had infinite money and space, and which I would purchase (or, more

Can I instead maintain an anti-index of all the books that _would_ be in my antilibrary if I had infinite money and space, and which I would purchase (or, more likely, look up) if and when the need arises? Because otherwise this seems impractical (though I adore the spirit!).