As of about 2 months ago, I'm the manufacturer of the case you mentioned. After working with the older gentleman for years who has done them, he was ready to retire (for the second time) and I was able to get the business from him.
Anyway, I know I'm a little biased, but these cases are far and above what most people can make in their shop. The cases have a 3000 pound crush test, plus they look great, have a carry handle, cushioned interior, and zippered caps.
I also sell them direct (at a better price, too) without the 3 rivers logo. I'm in the process of setting up a website for ordering, but feel free to call, email, or message me.
[email protected] 406-334-1258