1. I'm unsure what that has to do with the argument.  It's a charge that applies equally to your understanding of the text.
2. Jesus wasn't being punished but restoring.  I'm unsure of your point or how it might differ from mine.
3. Why would Jesus' soul have to be a distinct entity to be always in the Beatific Vision?  It's not a place?  Neither does that seem to obviate any suffering he may have felt.
4. That the plot thickened does not mean that He didn't already know that for which He'd been born.  I don't see this as an argument in defense of your position.
5. God knows all of the crooked lines beforehand.  He is not reactive.  I don't have any argument with the last part of your sentence, but it doesn't deny, either, that Jesus' Blood was the price for us.  He needn't have died - He did.