I have a complete outdoor kitchen kit that I assembled and then ended up selling the property before I completed the project. This has everything you need to build an outdoor kitchen and bar.
Here is a list of the items included:
Steel Framed base with all the cutouts for the grill, side burner, and access doors. Cost over 1k to build
Lion 32" L-75000BBQ New in box setup up for propane $1,699 online price
Lion L6247 Side Burner New in box setup for propane $329 online price
Granite slabs for counter and bar with plywood. Cost over $1,000 for material
My loss is your gain!
To complete the project you would just need to anchor the frame to your concrete, install backer board over the frame, cut and install granite, and add stucco, stone, or whatever finish you like over the backer board.
You will then be set up with an awesome outdoor kitchen!