Hello! I am hoping to do the Via Ferrata in Telluride, CO with a friend this summer and we are interested in via ferrata systems (something like this: https://www.amazon.com/dp/B06XY23CQG?tag=bhiking-20&linkCode=ogi&th=1&psc=1). It seems like a lot to buy for just one trip so I was wondering if anyone had a used one or two they would be willing to sell for cheap or lend out. 

Also, if anyone has done it before, is this system even necessary? I have heard of people doing it just with long slings and lock biners.

Thanks,

Juli