Have you checked with your local Corian fabricators/installers?

My local Corian installer mentioned Livingstone as an alternative to plain white Corian (Glacier White), so I think a good Corian installer could install your Livingstone. However the installer mentioned ordering the Livingstone from Texas which lead me to believe the materials cost would be much higher than the Glacier White.

If you go to Corian's website you can get the information for the Corian distributor for your local area. Then call the distributor and ask who does the most Corian countertop installations in your area and request a quote from that installer.

That's basically what I did to determine who to contact for our Corian shower walls when I had difficulty getting a Corian quote. I got a ridiculously high quote from a local Corian fabricator that my designer suggested but I wanted a few more quotes for comparison purposes.

Most of the cost of solid surface is fabrication labor, not the material. You'll only save a few hundred over choosing the original Corian material. Livingstone is just one of the many knockoffs, now that Corian is off patent. Find a Corian fabricator. Let him guide you as to the best material for the look you're going for.

I've fabricated plenty of Livingstone. It is Corian without the label; every bit as good. Were I still a solid surface fabricator, most of the difference in the material price would go into my pocket, not yours.

It is not crazy to spend more on a repairable, tough, and sanitary top that seams much more inconspicuously than engineered stone.