+1 for Bitwarden. It is literally the best solution out there. Been getting to increase uptake in personal circles with (very) limited success. The wife keeps trying to convince me that the ship has sailed in trying to protect info online. She's probably right.
Yes, it's definitely something you want to experience in the physical form! It's hard to describe what reading it feels like towards the latter parts of the book- you feel like you're lost in the book like how the Navidson gets lost in the house.
I was shocked by the reference to Navidson's house from the House of Leaves. The ending to your first paragraph is also interesting in that HoL starts with "This is not for you."