Full scale ALWAYS has the right of way... Period..
Yes you can find that in the AMA safety code. You can find that in an AC . But the FAR's do not.
There was no NOTAM and it is an uncontrolled airport. The full scale pilot isn't even required to have a radio.....
It was not an uncontrolled airport, it was a private airport. That means you cannot land without prior permission from the owner which makes a Notam redundant! A radio is required if the owner is using a radio to give permission to land via a radio. Without a radio you would be trespassing.