Great to have you here, Will. I liked the LED swap you did with your Sunwayman, using the Nichia high CRI. I'm thinking about doing that with my V10A, but I'm still waiting on the Nichias to arrive from Craig.
Yes, that Nichia high CRI is so far the "best" LED I have tried so far in my years of modding. It gives you a very nice and white team, and colors look natural. Beware of photos showing it "yellow" organge - that is the camera's fault when the Nichia is compared to bluish LED's. In real life the Nichia "looks" white :D
Don't own an SE-1, so I don't know where to start either. Depending on what type of epoxy was used (if any), it would be easy or hard to get open, but that host is at least not too expensive to experiment with :)