I may end up going with the Vivosun since it looks like they're about the only ones who offer them.
Only issue is I'll have to bend the ends out a bit to fit the larger poles the Infinity tent uses.
Shouldn't be a problem though. I have a couple Vivosun tents and the metal is pretty flimsy/easy to work with.
Was just hoping to find something a little more stout, but they'll work in a pinch.
Edit..went ahead and ordered a couple.