I've never used Calani, and was also wondering about the high amount of olive oil in it. Perhaps it depends on the other ingredients used. Some guys really love the stuff.
Maybe that locally made soap will be ok. It's worth trying, I guess.
It looks like this soap has the problem of many home made soaps: latherability. The bentonite clay is a very good ingredient for shaving though, because it improves the glide.
Given the oils on the ingredients list, I think this soap would be great for the shower. Provided that your skin does not object to the essential oils.