The sign asks

This is Bachmann 00280 O 10'' Straight (4/pk)

This is a Digitrax DH126D 2FX 1/2 Amp Wired Mobile Decoder

the inverters were moved from inside the long hood to a box on the walkway behind the cab

Blair Line 167-A HO Common Pile Laser-Cut Timber Trestle Kit ProductID_11970933 The sign asksThis is a Blair Line 167 A HO Scale Common Pile Trestle Build Straight or Curved Kit 6 x 2 High 15 x 5cm High Common wood pile (with round piers driven into the ground on the prototype) trestle found on nearly every railroad in North America. May be built straight or curved. Most parts are pre cut, and kit includes full size template and curve templates to aid in assembly. Includes a section of Micro Engineering's Bridge Flex Trak. Condition: Factory