back in the good old old days, in the 80's I got my hands on some Berkley acid for $95 for 1 1/2 sheets, 150 hits on Telegraph Street
That stuff has me talking to Marilyn Monroe at the McDonalds and watching a duck kick the shit out of a guy in a wheelchair crossing the street.
I would go with the acid but if you do alot it may linger for many years. My back is prone to go out with a sudden movement and my teeth hurt sometimes and if I am lucky and have total silence I can watch the walls or whatever I am looking at literally move in waves.
At my height I was eating 8 hits a day for almost 2 weeks. One hit took my girlfriend then, (who is a tye dye maker in Coloma, Look it up) and she never did acid before and she was crying because the needles in her finger tips were on fire and she couldnt get the out. So I had to get the pliers from my truck (true story) andpick out the imaginary needles from her fingertips. After that she was awesome the rest of the night, under the stars.