Installing UE4 on an offline PC?

I don’t have an internet connection on my tablet yet. If I did, I’d have tried DLing UE4 already. I’m thinking about getting a hotspot and a prepaid plan for it, but that depends on if I can do what I want to with the connection…like downloading UE4 to my tablet, transferring the files to, and installing it on, my offline PC.

Hooking the PC up to the internet, or a hotspot, is not an option (unless I drag the desktop & peripherals to a friend’s house, which I don’t want to do). Hence the gymnastics.