I reckon go for it. Tie some alpine butterflies a few metres apart, pit the weakest at the top so they dont pull the others off amd belay them all at the same time on a reverso/ bd guide. Their collective weight would atill be lower than most on here so dont worry too much as to whether the anchor can take it.
Its grade 5, they sound up for that. Its not the eiger north face your trying. Dont listen too much to the many opinions with little experience that are all too abundent. Its this same fear that holds many back from doing much at all!