Here's an image showing the Sunshine and Pennington Duryea underframe mini-kit parts, and the Speedwitch B&O M-26D/E and ATSF Bx-26 Duryea parts. They are all different. As Bill Darnaby mentioned, the Sunshine set will build either the early or late versions, however that's defined.The Speedwitch Santa Fe set has a couple pieces missing because the car is under construction, but the cross-members are shown. 

Tom Madden