Hello, I have an Athearn Diesel Locomotive, that seems to have a very odd coupler configuration. The coupler itself seems to be a typical horn-hook design, but it appears that it requires a very unique piece that isn't carried many places. I've been to a hobby shop, train show and these seem to be in sparse supply and pretty darn expense if ordering online 6.95 plus 6.00 shipping, for twelve pieces. http://www.athearn.com/Products/Default.aspx?ProdID=ATH90606 Does anyone know if there is a suitable alternative to these? I am including a photo of the locomotive and attachment point on chassis.