I have ordered twice from ebay now. The first time was last year and the eggs arrived wrapped in bubble wrap and set on top of crumpled newspaper with nothing to hold them from bouncing around the box. Out of 12 eggs I had 4 that were not broken. I cleaned the yolk off them and gave them to a broody thinking nothing would hatch and 2 did and ended up roosters that I gave away to someone looking for roosters for their free range hens.
I just recently ordered from a seller in NB. In her description she described how she shipped, had good reviews and NPIP. I checked out her FB page and her post in the breed's FB groups, she had a good history of post on the FB groups so I know she is not a brand new breeder of the breed.
Eggs shipped NB to NY in 3 days, she had them in foam egg shippers with air bags on the bottom, top and sides of the box and newspaper crumpled in between the airbags and foam shipper. The air cells looked good.