Here's the contract opportunity on Sam.gov:
REPLACE CAB ON HISTORIC LOCOMOTIVE #278
I was pleased to see this Special Condition in the Performance Work Statement:
Quote
3. A restoration contractor familiar with the restoration of historic steam locomotives and railroad equipment, such as Mammoth Locomotive Works in Palisade CO, Durango and Silverton Scenic Railway in Durango Colorado or equally capable vendor approved by the NPS must be used to complete the restoration/rebuild phase of the project. During cab rebuild, contractor shall use only historically accurate materials and paint colors in order to preserve the historical character of the cab. Contractor performing restoration shall refer to historic references and work closely with the National Park Service and its collaborating entities to ensure a quality deliverable that maintains its historic accuracy and character.