Now that I read it again, I don't think I answered your question well at all!
Whatever is on the Elizabeth's Studio website, those are all available to LQS's. Elizabeth's Studio is completely separate from Shamash. Generally I've found their fabrics to be usually be on 15-yard bolts, but as always it can vary a couple of yards either way.
We don't carry all of the Elizabeth's Studio line, but for anyone who can use a full bolt, we have access to anything that's still in print. Not *everything* that's still on their website is still in print, though. But if there's enough interest, they will sometimes bring a print back, or re-market it as part of a new collection. For instance, the aqua blue "bubble" print was originally part of "Ocean World" (which is gone new except for the seashell print) but the bubbles are coming back as a coordinate to "Parrot Party". It might work with the Christian Riese Lassen ones too but alas I don't have even a scrap left to check that thought out.