MD setup will fail in 1004 for now due to issues with the asterisk issues with 1004. Foxi352 is heading an effort to remedy this issue for this and future releases and consolidating the multiple MCE asterisk packages from multiple down to one comprehensive package.
At any rate, the MD setup will not complete until the Foxi completes his work, or if you do some workarounds and get the asterisk packages to install correctly during your 1004 core build.