Rivarossi 4-8-8-4 Big Boy Union Pacific 4002 HO scale

Rivarossi 4-8-8-4 Big Boy Union Pacific 4002 HO scale NEVER USED STORED IN A/C. Purchased new in the late 70's or 80's, then placed in a box and promptly ignored. LIKE everything else in that house. Open to offers. willing to bundle the other train items. NOT TESTED.AS IS.