Here is my playlist. https://www.youtube.com/playlist?list=PLjIYRqpIFecr00pZcfWM4...
Don't worry too much about the 60's. What you really want is an aesthetic which overlaps a lot (but isn't identically equal to) the 60's.
Try and find a tree swaying in the wind, or something which moves at similar speeds with difficult to track shapes. Fireworks are also nice.
Your sense of time is wrong. Set yourself a deadman switch. Use your phone to set a 20 min timer, and when it goes off acknowledge it and then reset it.
Stare at a bright spot or a lightbulb for a few seconds then close your eyes. The after image will look like it got chopped up in frequency space.
Do it with a friend.
Give yourself 8 hours. This is a whole day affair.
Ignore the old head and get on the darknet or find an in person broker.