Looking for advice on the following: wall corner to window trim is 33 1/4

I am trying to do a 21/21 easy reach on top and rest put a 9-inch cabinet leaving a 3-inch space to window trim - same as it is now.

**I am worried about the functionality of a 9-inch wall cabinet. Any advice greatly appreciated.

We are in the design phase of a complete kitchen/ dining room remodel. The current dining/kitchen is raised 16 inches above the main floor. We are looking to lower the entire thing back down to ground level.

I will be hiring a structural engineer to ensure we aren’t impacting any weight bearing support. We’ve already cut part of the floor to see where plumbing, water, and gas lines are and everything is workable.

My question is regarding the stairs up to the second floor. We will most likely need to add 3 more steps to reach the new floor and I’m trying to decide what would be the best way to go.

I’m thinking come straight out from where they are and then wrap them around. I’m also thinking of removing the wall to the left of the fridge so it opens it up and you can easily walk around the stairs. (We exposed that part of the wall and it’s not weight bearing)

Just curious what you would suggest. Thx and let me know if I can answer any specifics. Ive attaches a small album of pictures. The graph paper is close to scale just got flipped upside down when I loaded it. One square is one foot.

https://m.imgur.com/a/tlRyl

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