These are good, but they are not enough to ensure total privacy.
Ideally, you would want to send the transaction in a payjoin, which (and I'm sure you already know this) is just two transactions smashed together.
So there's going to be two inputs, and then there will also be I up to 4 inputs if the amount is not exact, otherwise as low as two outputs.
A payjoin is not easy to coordinate manually so this will most likely be orchestrated by the platform that you are trading on such as Bisq.
Which would involve what OP is afraid of; taint. I see this as a problem where can never be solved nor can it satisfy all of the requirements that people want. Compromises have to be made in one way or another, though I would argue that fungibility should be a given and that taint is a non-issue eitherways.