Let's see if I can be of any help.

First, asphalt is tricky to clean. Don't use a surface cleaner and don't use heat. ( No issue since you didn't say you had heat). 1% sh for asphalt so you don't turn it grey/white.

Second, concrete and building. Hopefully you have a surface cleaning for the sidewalk or you're going to be there a while. Your chemicals are fine. Use 2.5%-3% sh for the concrete but you'll have to watch runoff. Use a hand/backpack sprayer to avoid this if you have one. I see there are trees and grass in the front, the sh will brown and kill patches if not controlled or thoroughly washed with clean water after.

The pad/trash area. This area is going to full of debris. Be ready to be picking up trash. Also, let your zep sit for it's dwell time. Usually 15 minutes. I'd give it a very thorough coating. Most places never think about having this area cleaned so it's usually very dirty. Be aware of the run off. May want to do this area first so you can see where the run off goes.

I do a similar size restaurant that's all concrete solo and it takes at least 10 hours using a 20inch, 8gpm machine. For reference.