I'm so excited that Kenzie has found such a good home! Not to mention it's with people who sound willing to give you updates on how she's doing so you can still watch her grow up
I'd go ahead and bump up the rice bran to 2 lbs if it's fortified. If it's not you might want to do a quick calculation of her total Ca and Ph intake to make sure it doesn't invert the Ca:Ph ratio. It could also be that she's hitting another growth spurt, so I wouldn't be too worried about it just yet, but definitely something to keep on top of.
ETA- if you try out oil, canola is better than vegetable (which is usually soy). As far as omega-6:omega-3 ratios, canola is 2:1 and soy is 7:1