Wow, I'm honestly impressed with the level of experimentation you are willing to do on yourself.
Do you have good enough confidence/knowledge to be sure you will not damage yourself for the long term?
As far as nootropics go, his choices are on the conservative side. Racetams have a relatively good safety profile, and Choline is naturally found in common food.
Yes, but that doesn't mean the form found in supplements is the same. Also, "the dose makes the poison."
In the Nineties, Wired and Mondo 2000 were good for piquing interest in nootropics but as they didn't seem to catch on (aside from off-label use of pharmaceuticals like Adderall), I put them in the same mental bin as all supplements; not worth one's time except for individuals who have documented deficiencies.
I'm already taking Modafinil, so I might experiment with taking Pramiracetam as well, see if I can get an extra boost.