Yes, I do have almost all the species. They don’t cross breed, so can keep all of them in the same tank.Welcome to the forum!
I've never seen them for sale, but I wanted some when I had a Sumatra biotope. (Sulawesi isn't Sumatra, of course, but close enough) I substituted amano shrimp instead. Why, do you have some? If so I would love to know all about them!