Hi. I want to convert to MTL coupler and I want to run on smaller radii. The engne works fine, but it derails cars, even with the rapido on 11"radii. MTL calls for a 2004-1 and references the atlas forum, where 2004 guts are user in a 1015 box. Unfortunately, I get little red x's where the pictures should be, in the atlas forum. Does anyone have a link that might still have the pics? Is there a longshank version of the 2004 (ala the 1016) that would help me accomodate the radius? Or, once converted, I think the MTL freight car and passenger car trucks have long shank options. Would 1 od these be sufficient? If so, which? Thanks.