Hi hun, I'm so sorry your post was missed. I don't know what happened there. Anyway, welcome back!
I would've said to bring BT earlier from 9pm as that's a long A to bed. But you said 8pm is not making much difference?
The naps are a little on the short side, but still considered restorative. I would consider adding 10mims onto the A times to see if the naps lengthen a bit. I can see you're getting a decent nap in around 2.30pm which is great.
I think as long as she's not having long drawn out NW's, it's not going to be too much down to the routine. Also, if she goes back to sleep at that 4am wu easily, I'd doubt she needs a feed as you said.
Is the first half of the night still going ok?