Replying to Place to trade/sell one ski... (when you break your other)

Why is there not a forum/ place to go on here where you can buy one ski? My right Armada 166cm ARW 2014 has broken. The other is in perfectly good condition. So if anyone out there has a right one in good condition and the left has broken then let me buy your right one?

I'm sure this would work for a lot of people who break one ski. Let me explain:

Person A: Has a left Armada ARW 166cm that is in good condition. The right one is broken - been binned/burnt.

Person B: Has a right Armada ARW 166cm that is in good condition. The left one has split in 2 due to a gnarly as fuck trick not going to plan.

Person A & B find each other. Person B then sells there right ski to person A for say £50. Person A now has a set of skis they can use, and person B is £50 up. (Person B was richer and so wants a new set of skis anyway)

Would this not work? I'm sure this would help a lot of people out!

Thoughts please. And if anyone has a right Armada ARW they want to get rid of please get in touch!!