http://trainzone.co.nz/log-bridge.htm - [FONT=book antiqua,times new roman,times]30" NG TRESTLE SET - [/FONT][FONT=book antiqua,times new roman,times]30" NG PLATE GIRDER - [/FONT][FONT=book antiqua,times new roman,times]30" NG ARCHED TRESTLE - [/FONT][FONT=book antiqua,times new roman,times]36" Narrow Gauge Bridges - [/FONT][FONT=book antiqua,times new roman,times]36" NG TRESTLE BRIDGE - [/FONT][FONT=book antiqua,times new roman,times]36" NG TRUSS VIADUCT BRIDGE...
http://trainzone.co.nz/ng.htm - Some 30" - 36" rolling stock. (can't remember if there is any 36" passenger carriages).
Look under BNSF50 rolling stock on the DLS. You'll find D & RGW, RGS and Durango & Silverton ng passenger cars with working doors with sounds, passenger loading, unloading and passenger talking sounds.