hi Im new And I need a part I dont see the classifieds? help point me

I just bought an old proflex 5000 it is a k2 I bought the frame but It had no swing arm I have been searching ebay with no luck anyone know where I can Post So I can Find one? All I have is the frame So I need everything. I emailed k2 and the Said they no longer make parts for my bike. I think It had an easton swing arm? Can Any one Help???