i just added those dependencies into the .deb - everything else stays exactly the same as the i386 version.
about lightning - my understanding is that it is just an extension for thunderbird... so once you install thunderbird using ubuntuzilla, you can just go and download the lightning extension, and install it on thunderbird like any other extension? why would ubuntuzilla need to do anything about it?
i appreciate your willingness to help with testing, and i totally understand your reluctance to mess with a production machine. thanks for the thought, anyway.