The average render time on these was 5 - 6 hours per image, and I think the Evlin pinups will take even longer. Although there is more geometry in this set, the stripper pole set seems to take longer to render. So I really should have scheduled the 4k pinups of Evlin to render first.
On the plus side, I figured out what was wrong with Nawtae's feet. The high heel shoes she normally wears includes a pose for her feet. I had gone in and set that pose to 0, since she is not wearing her shoes in this set, but the pose for her feet got reset to 100% every time that I saved the scene and I did not notice that.
Super weird. It shouldn't do that. If a pose is set to 0 then it should save and stay that way.
Oh well!
I just tracked down the "remove pose" option and completely removed the pose from Nawtae for the 4k renders.
So foot problem fixed! :)