Does Anyone Make a Fully Clad Asparagus Steamer?

I use an asparagus steamer without the basket to ferment yogurt in an oven that has a Proof mode. Because I am using some unusual bacteria, I need to carefully control the temperature. Every asparagus steamer I have found so far uses a tri-ply base and single-ply sidewalls. Does any vendor make a tall narrow steamer that is fully clad?

This is an issue for me because the heat source in my oven's Proof mode is the broiling element. Even with the oven tray in the lowest position, the top of the steamer comes close to the heating element and gets much hotter than the bottom. With a single-ply sidewall, that heating at the top never distributes well to the entire pot. I could work around this by just using a water bath in a stockpot, but if someone makes a fully-clad narrow steamer I would like to try it.