This is a long shot but would anyone have a lead on a wine barrel?
what sizw are you looking for, My aunt who has a bar may have a bunch of old whiskey style barrells .
Im no help here, but here in VA we contacted a local winery and became friends with them and they let us use barrels all the time to age beer in.
I’m hoping. For 34-35 inches tall. I may have to alter it though.