Foundationlees is not only a natural choice. People choose foundationless for different reasons.But having an installation issue is somewhat urgent to get a reply sometimes. Some members do not venture into the natural beekeeping section on a regular basis,so I was just trying to help you get more responses to a problem you may be having.
Good luck on the combine,the queen right colony will definitely benefit from the workforce.
The queen in a nuc is already in with the general population and acclimated to the colony,whereas the queen in the package is most likely not any relative to the bees shook in with her. Thus,she is caged up and given time to let the bees in the package accept her.There is also two other scenarios that could happen,one is that the queen is not breed properly and two, a queen could have been inadvertently been shaken into the package from the colony that was shaken for bees.
But in answering your question,the queen sometimes takes a couple days to start laying even after being released from the cage,even though she probably is physically able to almost immediately.
Don't give up, and don't be afraid to ask questions. We've all been there before! :)