Decided to come back to post photo of finished project. (The lamp did end up having a ground wire screwed into the inside of base, so it made this much easier than I was anticipating with my previous posts). I'm so glad I did this! It's a great focal point in the room and I get a lot of compliments on it because it's so different and unexpected. I have it on a dimmer and it gives a nice soft glow, or floods the room with light, depending on what I need at the time.
(Ignore the awful curtains in the background! Those have since been changed...maybe I'll come back and post a picture of the whole room, as well as a b4 picture of the lamp soon).