@Zee Abbas
Sorry, I should have elaborated, your 1st post mentioned going with a 3 ton per side, 1300 square feet per side. That is way to big. So many issues with oversized equipment. I now see you have wrote a few more post, and do agree with the 2nd 2 u have wrote. I don't like seeing people ask hvac questions on here, so many wrong answers. As u mentioned in 2nd post, oversized equipment will cool so fast, won't run long enough to pull humidity out. Another problem I always see is returns not being big enough. As u mentioned, I agree, being already set up for with ductwork and mechanicals, a traditional split is going to be this owners best bet. Sizing is very important for alot of reasons, and best left for the contractor bidding for a lot of reasons, location, being 1 of the many critical factors. Wish u the best
