I wouldn't store a large amount of coins all in one wallet. Split them up into smaller chunks, write down the seeds of each and keep several back ups. That way you're safe and protected.
Splitting up into small amounts of bitcoins will incur high amount of fees and managing paper wallet of multiple addresses are a headache.
See here, a single address hold how many bitcoins...
https://blockchain.info/address/3Nxwenay9Z8Lc9JBiywExpnEFiLp6Afp8vEncryption alone is more than enough in my view.