So quick FYI - bought a gobi ladder and it doesn't appear to work on the LX. The LX has a fairly flat spoiler while the top mount for the gobi has a .33" bend up for what I assume is a variation in the land cruiser spoiler. Also, the trunk handle on the LX is smaller so you would be sticking it directly on the paint at the bottom of the ladder. You would also have to modify the lid handle, as there are various pieces on the LX that are not present on the LC.
Long story short , not plug and play, and frankly not worth it in my opinion. Anyone need a ladder????