Ladders and 14' wide platforms for Bulkweigher access. Follow the link to the Bulkweigher.
https://www.shapeways.com/product/UNS4S7RAP/n-scale-bulkweigher?key=3f408eedfcd4c6c1babd7ac186f81bc1
Hint: Soak in Bestine overnight, prior to painting. Not intended for children under 14 years of age.