As someone who has moved overseas and back four times; you are worried about the trivial details. Take a good hard look at the shipping contract concerning damage coverage. The contract may also prohibit certain hazardous materials like lead acid batteries and cleaning products.
Have your property packed out by a company experienced in shipping belongings overseas. No amount of silica packages will protect your stuff if the container is lost at sea or gets sea water inside.
Document the condition of your belongings before they are packed up. Also make backups of important data and papers and keep them separate from your shipment. So that in the event that the worst happens, it's just a matter of getting reimbursed for damages and buying replacements. While that can be time consuming and annoying, it is better than losing irreplaceable photos or legal records.
Good luck and enjoy your new country.