Coco and Subtle pigments (also LE) are impossibly close dupes...LOL...almost identical in fact, I have owned all 3 and sold the lot
But if you cant get either of those then the closest colour eyeshadow would be Satin Taupe, its pretty damn close and its a perm colour
BTW - Sunnydaze working name was Tear Drops - and I have seen it come up on ebay a few times now by people who had pre-release jars of it, keep an eye out, you could get lucky.