Here is an alternate to the standard SW1200 trucks. This sprue holds details to complete one Z Scale SW1200 locomotive. The sprue holds four Flexicoil type trucks and four fuel tanks. Only two fuel tanks are needed. You can choose which style of fuel tank to use.
If you purchase the photo etched brass handrails kit (sold here
), you will need to cut a notch in the plate by the stair case. Cutting a notch will make room for these bigger trucks to fit under the locomotive. See the photo above in the gallery for reference.