I think you should do a diagnostic test first to see how many hours you need to study for the MCAT. That will tell how well you can balance out the 4 courses. Since Mac only looks at CARS and that’s arguably the section where innate ability has the biggest influence, if you score a 128+ on your diagnostic, then your plan sounds doable. But you also need time to study for Casper because you’ll definitely need at least a 4Q, probably high 4Q to interview with a 3.82 because it’s unfortunately not competitive. I think the avg accepted GPA for mac is mid-low 3.9. I’ve been rejected pre-interview two cycles in a row with a 3.96, 128 CARS, 4Q Casper (salt). So it ultimately comes down to your diagnostic CARS score and your studying ability.