I've looked around for a drop in years ago and then decided "NO", nobody makes one for the center console for the LR3......stateside! Maybe our friends in SA and Aus have something because they have some great kit down there for Disco 3/4.
On that note, Smittybuilt, Gunsafe, and "I can't remember the other" make a small one that I believe could fit under one of the rear seats. Jeep and Yota sites are good for searches for that kind of thing. Depends on your size requirements but I do not think anyone makes one that will drop into the console without significant modification to your console.