I've just booked LHR-OSL-KEF (London-norway-iceland) using UA miles literally last night. She said it was over the mileage limit for an award so would take two lots of 20k like you mention above. Called back someone else.. they didn't notice.. 3 of us on SAS through norway to kef for 20k points each and 50pounds in taxes each. No need to go through CPH as well.. although thats probably an option if you're keen to.

We leave on the 19th and come back on the 24th of October.. who knows whats going to happen while we are there, but we are taking food with us as well.