Someone with such little experience and such little knowledge should not be purchasing any of these animals. Many of these animals you seek should only be housed by experts or public aquaria. As previously stated by others, you are just trying to seek validation to do what you want regardless of whats best for the animals. The majority of people in this hobby will ignore the thousand people advising against it, if they find one uneducated person that OKs it. You need to do a LOT more research. Sorry to be a bit harsh, but these are living animals and you are simply not ready to care for them.
As the saying goes: "If you have to ask...."
As the saying goes: "If you have to ask...."