4 reskins by KGP of Western Trainz . You get 4 CPR GP35s and 6 RS18s in Tuscan and Gray.
4 reskins by KGP of Western Trainz for his Red Maple Industries route. You get a GP-40, GP-35, SW-1 and a SD-35
Horn sounds are included in download, you may need the engine specs from Jointed Rail.