It's not Keiz, but you might want to have a look at my UI. It looks like Keiz and I had similar ideas about how a UI should look (I've even spotted some stuff in Keiz' UI that I've only just added to mine lol).
We've both tried to give a nice clear screen to work with, just gone about it in slightly different ways.
My original UI is probably the closest to Keiz:
Myxiplx's Widescreen UI
But I'd recommend taking a look at the new one, it might look cluttered but it's surprisingly discreet in use:
My new Hybrid Widescreen UI
Even if you just want to take a few components from mine to replace the broken ones in Keiz, feel free.
Myx