As I am gearing to get my cabinets order started I got permission to cut the wall to open up view and would like to create an island.

Wall corner currently serves purpose of air ducts and electrical outlets. There is airduct on both sides of corner wall and each has double supply opening, one for summer and one for winter. I belive I can take the wall in half, keeping only bottom air ducts opening, paneling rest of the wall and get base cabinets on other side to create island. Are there any rules for sizes? How to design one when you stuck trying to cover up an area? What should be in an island? Any rules?

Would rather not move any appliances although fridge will be counter depth.

I would lke to create seating area at least on one side.

Excuse the mess we just moved in.

I also would like to "straighten out" peninsula and have L shaped layout to further open up.

Here are my kitchen current measurements, current wall is 45x56 inside measurments.