18063 was released in 1999. Gerry is calling it black but I would call it charcoal gray, the prototypical color. It had TMCC, RS3, a wireless tether, and rear electro coupler. When I ugraded mine I also had the Silver one. Rather than cut up the gray frame I swapped shells and sold the Silver one with the later CV features.
The Pullmor motor is the limiting factor on pulling power. Installing a Pittman nearly doubles the number of cars the engine can pull. Its heavy enough for sure.
Lionel says North Lima has both engine and tender shells though a bit pricey.
Pete