Bill i just brought 81 eggs last week from Ohio in the states back down here, German new Hampshire, light Sussex and, silver laced wyandotts i picked up all the eggs by hand no post , then packed them in bubble wrap and 18 egg Styrofoam cartons stuffed into a backpack no over head storage all made the 4000 mile flight with out bump,, i set them on the 1st hoping for a good hatch, as far as cocci i treat with corrid it covers all strains of cocci and is a one time treatment without any egg withdraw time its good stuff you can order it on line and ship via USPS to your country
a smart product for coccidiosis is also the Baycox, but, really expensive
I use Aviochina because is multi purpose, really helpful in rabbit and turkey treatments too
I can also find Amprolium, without suspension days