Brey Krause Harness Truss, was used in  98 C2S and before that it was in an RS America, catalogs say it can be used in 74-98 911s.  In nice shape, has a go pro mount and a Brey Krause Camera  mount, I will look for the other part for camera mount and will include it if found.  Works great, was very comfy in harnesses.  Uses stock bolts. No custom work needed.