I saw that one. Nice score.
The biggest issue will be finding a tabbed bowl. Basically, you may find one IF someone has a sequoia that is NOT solid or finds a Seville with an awful frame, but a nice bowl.
Another option would be to find a bowl that you like that either has two handles on the bowl or that is for a performer & has the two brackets. If it has the handles, REMOVE the plastic/wood portions from the handles to make the handles a LOT less noticeable. If you don't want to strip paint & refinish, look for some paint that is supposed to be the sort of "redwood" color and paint over the black with it.
I suppose if you have a trashed black kettle around, you might even try your luck at cutting off the portion of the handle that connects the two tabs that are attached to the grill. Maybe then try putting the now free end of one tab in a vise and see if you can twist the now free end of the tab 90 degrees without popping the tab off the kettle.
Another option would be to cut the entire handle off & then just mount some small stainless steel corner braces to the bowl. Basically, something like this, but even a bit smaller will likely work.
https://www.homedepot.com/p/Everbilt-1-1-2-in-Stainless-Steel-Corner-Brace-4-Pack-13539/202950155 I would probably do three around the bowl because it will likely work & you can have a little bit more slop in your placement than if you do four, without having a wobble.