"What features would you want cut?"
Hmmmm. Don't know, really. I actually realize that there's very little savings in a cuben pack that small. Can't tell you why I want it, just one of those things! ;-)
I could do with less padding in the shoulder straps, no bungie cord on the sides (and no loops for that bungie cord on the sides), and no ice axe loops.
But I'd want everything else.
Might not be worth it to you to make such a pack, I'd understand that. In fact, I probably already have a good enough cuben pack with the Revelation!