How's she looking? Any tips as we head into the final stretch?

She is small, but only 3rd week of flower and an auto so no worries! I would recommend Defoliate some of the undergrowth, definitely the yellow leaves, and remove some other choice leaves that are blocking lower bud sites to allow light to access deeper and allow for buds to fill in more. To help with the same idea of letting more light into deeper parts of the plant, I would also use some ties to space the branches out as much and even as possible. Combination of those two should help make the most of this girl. Leaves should not be turning yellow as she is still early flowering. However your plant is pretty bushy so the bigger lower leaf might go, nothing to worry about as long as the other leaves are healthy. 8 weeks of flower is average. Hairs will go from white to orange depends on the strain, but it happens near the end of flowering, as that is the last stage for the pistils, but usually after 4 or 5 weeks of flower they will have a few, sometimes more and sometimes none at all, sometimes it takes 7 or 8 weeks. Depends on strain and growing conditions. For your girls here, I would guess pistils will start to orange over in another 3 weeks or so.