lol i know isnt it crazy how you have to be THIS cautious now? If somene at the the trazor factory tampers with your trezor, u can still reset it yourself,
but yeah its best to have paper wallets, download bitcoin armory, then download bitcoin core and rul your full node, u gtta have 100GB of space and a fast cimputer
then have a paper bitcoin wallet private key that u can have backed up on paper
but yeah trezor will be good too
just get multiple treszors, also nano ledger, get MULTIPLE hardware wallets, split up all your bitcoin between them all!
Yup! Gotta cover all the angles...