You are missing the point.
No. You are. You can't have perfect security.
With the exception of point 5 and 6, which are simply just good advice (but #5 wouldn't have helped him here; and #6 makes it difficult to provide a criminal service -- after all someone else needs to know about it.)
All your suggestions have caveats and vulnerabilities. I'm picking on 1 and 4 in particular below, but there are issues with 2, 3, 5 too.
Step 1) NEVER carry incriminating evidence with you. Encrypted or not.
Good advice, but how exactly do you accomplish this? Either your data is somewhere with you. Or you have remote access to it, and there will be evidence that you do in fact have remote access to it if they seize your laptop WHILE YOU ARE USING IT to remotely access it.
Plus if YOU have remote access to it, then so does somebody else; if they can somehow convince the remote system they are you; or if there is some unpatched exploit they know about that you don't. (And you should assume there IS.)
After all what is it they say about stuff you don't EVER want leaked online? Oh right... DON'T PUT IT ONLINE. That runs directly counter to your advice to "always put it online".
You can't have it both ways.
4) use a dead-mans switch on that servers encrypted data
And then if the internet goes down due to a storm, beaver, or backhoe somewhere; all your records are gone and your now out of business. No idea who you owe what, or what people owe you; or where any of your assets and contacts nor how to reach them...Oh yeah. That's a great plan.
2) use a VPN/SSH Tunnel/etc (and/or both) to connect to the server where your data is. (make sure that server is located in a non-extraditing country, and filtered from you by a few shell companies)
If they have enough network surveillance at their disposal in place to unmask tor users, a couple VPNs and shell corporations isn't going to work. It might work to keep boris and igor from being able to find you. But I wouldn't rely on it to keep the FBI at bay if they are genuinely interested in shutting you down; and you live in the states.