Daylight simulation high rise office building - CS 2.0

Dear forum, I hope the following help request is falling under the right LEED version, since the calculations I am running are following the guidelines of CS2.0 as the design studies of the building were started in 2008. I am using the OPTION 2 - Daylig simulation Model. The 30 floor office building is located in a dense urban area with immediate adjacent buildings in the context. The guidelines say : "calculate the daylight illunitation for each applicable space using the following criteria: clear sky conditions at 12:00 noon on the equinox(s) for the project specific location". Each floor are the same design except the first 5 floors. Since the design has to achieve more than 75% of the total regularly occupied spaces with a minimum of 25 fc, and since this is a weighted average area calculation of the different daylit zones, it sounds crazy to run each separate floors being really time consuming. Is there an alternative way to take some low-mid-high level typical floor to run the calculations and assumed this is a fair representation of the overall building simulation ? (similar to the floor multiplier when running and energy model). The concern is that every floor has a different DF then since the adjacent building are smaller than the as designed office. Also I assume the context needs to be modeled as it plays an important shading mask role impacting the illuminance map of the floor. Thank you for your valuable feedback. Olivier.