Welcome Scytale. You can find some Swamp Rat Knives for sale here http://www.shop.ratknives.com/main.sc and Scrapyard can usually be found here: http://shop.scrapyardknives.com/main.sc

It's already been stated that the knives com eout in batches and are difficult to obtain unless you hang around the forums and keep up to date with the releases. SO why don't you pull up a stool and stay a while.