After a lot of research and talking with several taxidermists, I think we have determined the process for tanning the sheep skins. I ordered the products needed on Friday, so hopefully they will arrive soon.
There are apparently many variations of how to tan hides, and varing opinions of best products to use. And now one has done sheep, so they keep refering to deer hides as a comparison.
We did resalt the hides on Saturday morning as we wait for the chemicals to arrive and the next processes.