I have some 178 K2 Silencers I will never use again, they have PX12 bindings at a 315bsl. They have a couple tiny edge cracks, but the edges are still very much intact and solid. The topsheets are pretty chewed, but I can epoxy and file them for you.
If you live in Bozeman, and you want them, I will give them to you for like 75 bucks. If I know you, more like 40 bucks.