Generally you can do pretty much anything with a house if you have the time and money. with a limited budget it does limit what you can do especially for kitchen remodel costs. A kitchen renovation needs plumbing - where is it located in the garage now? Will you build your new kitchen etc on the existing concrete garage floor? If you build a new floor above the existing garage floor that may give you more options for remodeling. Let us know about these answers and we can try and give better advice. Also consider talking to a local kitchen contractor or kitchen cabinet shop - they may be able to answer many of your questions and you will want to talk with them eventually anyway for your project. To get a cost of the cost to remodel your kitchen the website http://www.remodelormove.com/kitchen-remodelling The calculator gives the cost to remodel your kitchen broken down by labor and materials

Not a thing about this kitchen would make me happy and I try so hard to avoid Chineses wood products.

I would like to add the floor will be Mahogany Color Wood Look Tile.Very dark.

A McSo. Couldn't the base of 15cm overhang be supported end to end with steel. As a single steel structure mounted on the larger cabinet area visible here. It should be sufficient for supporting the extension. Corbels will provide additional support but IMHO may not be required. Have you thought about an semi circular or a D shape counter to avoid sharp edges. Thanks, Nitin Cornerstone Designs, Bangalore.