Wow, looks like you've already done quite a bit of research! You're well prepared already
Adding to what you said, I'd add that you shouldn't touch the pups until they are venturing out on their own
and their eyes are open. They'll likely go exploring before their eyes are open. They're very cute at that stage; they look like little bobble-heads. They might come out to eat, and if Mom finds them out of the nest she will drag them back by whatever body part her mouth first finds. (It might be startling at first, but she's not hurting them, not to worry
) Anyway, waiting until their eyes are open is an extra precaution.
She'd probably appreciate a dark, quiet room. Just to remind you, when you move her cage, make sure direct sunlight does not touch the cage. It could be dangerous for adult hamsters and even more so for little pups.
Do you know to separate them at 4 to 4.5 weeks into different genders and all that? If you're sure about the sexes, the males can stay with Olof and the females can stay with Annie.
Best wishes!