Here we have a Walthers HO Scale unassembled kit of a Union Pacific RR PS-2CD 4427 Covered Hopper #21824, in its original box.  The Walthers product number is 932-5701. The buyer will have to assemble this kit.  I am sure this model will look great on your layout.

I normally ship the same or next day and I ship via the cost effective USPS Ground Advantage system so this product will arrive at your location quickly and in good condition.

Thanks for looking.