I'm not sure how much light I can shed, but I bought the original art from Topps on ebay maybe 10-12 years ago. I've since sold it when I remodeled my kitchen. However, during the time I had it, I had a bunch of stickers printed up by Chip from MN. Not sure if he kept any himself, but he may have. I've sold and traded a handful of them over the years.
As for their being in any of the Lost Wacky sets, I don't know for sure. I think I have the first two sets and I don't even recall if they made it in those or not.