you've gotta get everything
There could be a problem if an application installs data files, etc. in another folder, say buried in the System folder. If you're sure that such files do not exist, or that they are backed up, then a transfer could work. You need an expert to chime in here... someone who's actually done what you're asking about.
And I bet your sidewalks and lawns are dry today. I lived in Boulder and Golden for a total of 5 years. I'd love to move back someday!