Get Machine/Disk space
Edit the config file /etc/apt/mirror.list and edit the location where it is going to be stored too.
I am using a VM machine - and I have created a VM Disi for this.
You need to look for set base_path
Check you get the correct files
You may want src, or binary so make sure you only pull the ones that you want.
mkdir /media/U14/SW/Trusty chmod 777 /media/U14SW/Trusty apt-mirror
Add a crontab entry