If all you have is the 120GB, then I echo DT's suggestion of getting a second drive if at all possible. Modern software, and games especially, will eat that up in nothing flat! I have a 160GB that came with my computer, and got a 500GB for Christmas that I use just for games. At the moment both are about half full.
If you can't get a second or bigger drive, but manage to make enough space for the NBC mod,
DO NOT use JSGME to install it!! JSGME copies the files from it's Mods folder to the destination, thus requiring at least double the drive space. You can either extract the KPO folder directly in the Radio folder if your program does that, or extract everything to a temp folder and just "move" the KPO folder.
I am sorry for your problems. The NBC station is so large because they had the overwhemlingly vast majority of the most popular programs from that era. And as I mention earlier in this thread, I couldn't decide what to leave out.
And now for what could be either good news, or bad news, depending upon your POV: I'm planning at least one, maybe two more add-ons for the NBC station. Thus asking for even more hard drive space, should you choose to use it.

Right now I'm working on a CBS add-on, then I have to do a KGMB version. So it'll be a couple of weeks before I start the NBC one. So consider yourselves warned!!
