It's never-ending! Kim Kardashian and Kanye West apparently can't make up their mind about their Calabasas mansion remodel because these beast has become much more than a remodel -- it's a g-damn money pit at this point!

Kanye was reportedly perennially changing his mind about how he wants the home to look, so Kim had to take over and make some first decisions to keep the project going and to establish some sort of deadline. A source tells X17online the project is slated to finish by early spring ... but it's been going on for almost THREE YEARS!

Remember that report that claimed the couple were going to move in by May? Well we dispelled that last month and crazy enough, the couple has ripped up even MORE stuff since then. In other words, they've still got a long way to go ...