If only I was trusting enough to have my coin on an exchange

Currently the little BTC that I have is in an Armory wallet and I haven't yet set up a BCC wallet.... Putting my key somewhere else is a bit scary but of course there's the risk/reward thing. After the split is it going to be too late to set up a BCC wallet to claim my BCC?
No, you have your keys you have your BCC, simple as that.