I just did a burn off, much like the one you should do to get rid of the toxic black paint on the burner stand. You can see in my pics the amount of surface rust on my surround. If the galvanized coating were still there, there would be no rust.
I once welded on a piece of galv.metal by...
The one in Edison NJ sells booze. They had some craft cristmas gift boxes, but pretty much all the cases are big beer.
They also sell a pretty good kirkland american vodka. 6 times distilled, 1.75L, $13.99 you can barely buy a handle of swill for that.
I put one of these collars from HD around the burner. It helped a lot. Before that I just used a few pieces of sheetmetal leaned against the legs. It didn't work nearly as good as the collar.
This is my take on a store-able, modular brew tree. I wanted to be able to make it into nice small pieces for storing in my single car garage that also doubles as my metal shop/storage for my business/yard crap/whatever else.
I decided that fold up legs were a must to reduce the storage...