@Seeker
Is there anyway I can download them and place them somewhere so it can install?
There's always a way, but I feel that it's a bit more than I can relay in a series of forum posts. If this is something you want to explore, you should do some reading about how software is installed on Linux in general, which can then be applied to RetroPie. That kind of research and application is most certainly rewarding, but for simplicity sake, I'd recommend just getting a WiFi dongle.