I don’t have any direct experience with liver shunt, but if you use the site’s “search” function you will find several long threads about it. I don’t think any of them mention cost, but cost does probably change over time anyway, so someone else’s bill even a year or two ago wouldn’t likely tell you much.
Here’s a highly recommended pamphlet on the subject:
https://trace.tennessee.edu/cgi/view...t=utk_smalpubs