Since there is little to no info online about these, I've been documenting some of the work I've done + things I've learned along the way. Most importantly, it tells you how to properly remove the fragile bezel.
https://www.youtube.com/watch?v=VYjGSwG3Hvw (https://www.youtube.com/watch?v=VYjGSwG3Hvw)
-Segasonicfan
You shouldn't have much trouble with the Delta made ATX PSU (you've replaced the original death trap PSU with) for the foreseeable future, Delta make some pretty quality stuff.
I have a Delta built, server grade PSU that powers my highest end PC, it's very well built and the soldering work inside it, is impeccable.