IHC 40' Quad Hopper
This one started as a cheap IHC President's Choice Christmas Trainset 40' quad hopper. The quality of the cast-on details is far better than one may think at first. Follow the work in progress here.
Bachmann 40' Quad Hopper
A batch of four Bachmann 40' quad hoppers also received the same treatment. However, the cast-on details are a little bit thicker than IHC mold. Follow the work in progress. Follow the work in progress here.

Bachmann 40' Gondola
The next try was a major rebuilt of four Bachmann 40' unprototypical gondolas. They have been converted into drop bottom gondolas. They follow accurately a prototype built for CNR back in the 30's and still seen in use at least in the 80's.
Model Power 40' Gondola
The last ones are a set of five Model Power 40' gondolas. Cast-on detail is cheap and brake wheels were replaced by spare parts. The brake details on the underframe are from Accurail.