Heritage or tractor supply got them less than John Deere in canvas duck. Ones from JD come with too a short of a pipe and a goofy swivel might not want. Those vinyl ones from Lapco will work around sparks? They wouldn't even stand up in the wind here.
i run them wood framed 1's myself they arent very durable but they are cheap and the 9ft span helps alot in the texas heat 1 good wind gust and the wrong angle and you ging back for another or break out some cold roll and duct tape