Looking for a DCC/Sound decoder for an original Athearn SD9, with the metal trucks! An A Line/PPW repower kit is being installed. Just need to attach motor, after getting wires attached, or decoder installed. Also in need of photos, from all sides, of Rio Grande SD9 #5305. As that's what I'm hoping to paint it, when I get to that point! After adding additional details! Any help and/or information appreciated. Thanks.