Here's One we Built on existing concrete slab. The client gave us the dimensions of grill, cabinets cooler and sink and basic layout of units. The structure is built out of 4" block, with a granite countertop. Natural ledger stone panels(6x24) to finish exterior.

https://www.masonrycontractorsnaplesfl.com/

We need to see the whole area the cocrete is fine for the grill but you want a lot more than that so we need a lot more info

It’s hard to see how much room you have for dining space in addition to your work area. You have a nice view so that should be taken into consideration when you plan how seating will be oriented and what the diner will see. A local landscape firm should be able to help you best as this may require new patio hard surfaces, electrical/gas, etc. also important to consider what your house finishes are and how they relate to your new hard surface selections. Also be up front right away with your pro about your budget. You may be shocked to hear what these kind of projects cost.