Just wanted to say, I ended up finding and adding a really nice aftermarket speedo. It came from Amazon:
https://www.amazon.com/DKMOTORK-Moto...p/B07WW3L3Y8/r
Attached to my post are the wiring guidelines. Instead of replacing my existing speedo, I created a custom harness to piggyback off the existing speedo. If I had spent a ton more time on the wiring, I probably could have made it work and removed the stock speedo -- but I didn't want to be destructive.