Duress wallet / Transaction history

Hello all, relative beginner here. I'm currently using my HW wallet with no passphrase. I was thinking of creating a duress wallet because I'm paranoid of wrench attacks.

My initial thought was to move my stash to a new wallet (same seed + passphrase), and just leave some funds in the original wallet, but since the whole transaction history is visible, it would not really be believable.

I think the only solution is to create my set-up from scratch with a new seed phrase, but I was wondering if maybe I'm overlooking something and someone has a better idea.