Installing Kubuntu on PC without internet connection

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http://askubuntu.com – I need to install Kubuntu LTS version on x86 notebook. Current version is numbered 12.04.1. Unfortunately my internet connection is somewhat limited so I can download max. 1 GB per month. Now what are my options? I checked this web page: http://releases.ubuntu.com/precise/ On the bottom of the page is directory listing. Most ISO images have size ~700 MB. I can download it at work or at friend, its no problem. But I am not sure if this small image contains all binaries needed to create usable system (at least in minimalistic version including graphical user interface, OpenOffice, Firefox brow (HowTos)