The iso for caos2 will install a minimal core file system. It is possiable to get the rest via a slow connection, but it will be painful.
We are thinking of incorporating more packages on the core ISO considering that the iso is only about ~100MB.
The installer should be ready in the next week or so for alpha release. Stay tuned!
BTW: If you want to do pre alpha testing for me, and can download the ISO image please email me directly.