since I'm making a custom countertop anyway, I'll just make the cutout for the sink a cover and have a near-flat surface anyway.[/QUOTE]
please show us pix as you go along
it sounds like it will be lovely. When I started reading this, I was going to mention that hubs and I adapted a stainless steel mixing bowl to be the sink in my horse trailer, but it's obvious you are WAY upscale of that. LOL.