Dang, nah I don't think it was that long or it would have taken me way longer. I think this was the one I used. Goes over a lot of general topics and I think I spent about 2 weeks during a summer taking notes on parts of it, reviewing my notes, and then finally taking and reviewing practice tests around the week before the exam. I think it worked because I got over 90th percentile on that attempt supposedly after doing not nearly as well the first time. Took me about a month specifically studying for it. I did CASPR and some other stuff in that time as well but mainly MCAT (my CASPR sucked though ngl but it got rehauled with an interview section that year which I erroneously thought was unscored)
From a google drive on reddit, about 90 slides which I think was right