You might try making a card board pattern of what you have in mind and take it to a shop that will laser cut stainless sheet. It's available in both polished and satin finish of many different gauges (thickness). Just a thought. It mostly depends on if you find the right shop that will assist you in converting the dimensions of your pattern into a dxf file. Might not be as pricey as one would think. At least you'd be getting something that you know will work.
Good luck.
John
