Here is an MTH 70-5004-1 G Scale Pennsylvania GG-1 Electric Engine #4913 with PS2

Model Number: M529

Trainz Product Id: 11566292

and the couplers can be replaced with other makes of couplers

enough to build 45 112

Kadee 705 HOn3 Assembled Metal Couplers ProductID_12195525 Here is an MTH 70-5004-1This is a Kadee 705 HOn3 Assembled Metal Couplers (2 Pairs). The #705 Metal Coupler will work anywhere a #713 or #714 Coupler will work. This industry leading coupler features an all metal coupler head, shank, and centering spring and comes assembled complete with insulated draft gearbox and lid. The #705 Metal Coupler may be body mounted on any flat surface; HOn3 Scale locomotives or rolling stock. It is not recommended to use a metal coupler