That is probably too long.
I would start by candling all the eggs carefully: any non-viable eggs in the incubator get removed. The worst of the shipped eggs get skipped (look for cracks, weird air cells, extra-dirty eggs, etc.)
You can save the last 4 of the hatching eggs, but I do not think they will be viable if you store them for 13 days.
You can candle the shipped eggs again in 5-7 days. If any are not developing, you could take them out of the incubator, and that might let you put the last few eggs in without waiting all 13 days.
Of course candling only works if you can see into the eggs. If they are very dark brown eggs, you may not be able to see anything useful. You can still look for cracked shells on the shipped eggs, when deciding which ones to set right away and which ones to delay or discard.
Unfortunately I don't have suggestions for the best way to store them in order to have a chance of them still hatching.
Maybe someone else will.