Is it possible to install Linux Mint 12 just by editing
/etc/apt/sources.list and putting Mint's repos there? I can copy them from the Live CD, of course.
I know a clean install would be better, but I've had it with Ubuntu.
My box has a lot of custom stuff that would take me a while to reconfigure after installing a new system, e.g. personal configuration files and scripts, Ruby Gems, Python pips, non-apt installations, custom compiled libraries, etc.