A week, really? Seems like you know quite a bit already!
No problem. There is a lot to think about with lightning privacy. I'm sure I forget to mention stuff.
Not to shill, but personally that's why I love the simple, yet strong, privacy that Monero offers (for self-custodial/permissionless transactions even if one doesn't want to stack it). Privacy from both counter and third parties and no gymnastics required for it like lightning.
For ecash I recommend Minibits wallet for Nostr since they give you a static lightning address you can replace your WoS one with
https://github.com/minibits-cash/minibits_wallet