Not sure of your wants and needs but soapstone is also very DIY friendly. You can use woodworking tools to cut, shape and finish it.
One word of caution is that the stone is easily scratched and chipped. Especially for an outdoor kitchen, I would suggest that you avoid fancy edge treatments.
Our kitchen has a very simple slab profile and after 20 years, they are far from pristine but I consider it a patina. Not damage.
Boynton Beach, Florida
3600 S Congress Ave
Suite G
Boynton Beach, FL 33426
561-228-1332
Florida@soapstones.com