should it be invested in bitcoin and hold?
or
should it be invested in alt coins?
and why or what will make it sustainable via etc vs. alt investment
Set up a Trezor, and get an account at a place like coinbase. Start buying at small amounts like $500USD and practice moving it to the hardware wallet.
Then do larger amounts, like $5000USD.
Spread the risk out this way. Then pretty soon you will have the entire amount secure in an offline cold storage. Keep a few hundred USD/0.1BTC in the coinbase/whatever as fun money.