How can I add the softwares I have installed from USC of kubuntu 12.04 into kubuntu 12.10 iso installation file

I am currently using Kubuntu 12.04. I don't have strong high speed Internet connection and managed to get Kubuntu 12.10. I found that it's size is about 1GB. I have a lot of softwares installed in my current Kubuntu 12.04 via Ubuntu Software Center

I would like to Add these software to Kubuntu 12.10 installation iso file. I don't want to download packages from Ubuntu customization kit (UCK) or similar software.

I don't prefer using APTonCD or similar software. What I want is to add these software into this Kubuntu 12.10, so that they appear along with the default application which will be installed as default when the OS is installed. Is this possible?