I think railway construction and maintenance vehicles are interesting, and wish we had more modern equipment available in O scale.
This is my attempt at customizing two Norscot Cat 572C pipelayers ala Hulcher or RJ Corman for my rail service company. I wanted one as a lowboy load, and the other ready for work. Now I just need some decals. I might print another cage for the one on the lowboy since the paint didn't turn out the best.
The tamper, bucket, and clam bucket go with my Diecast Masters Cat M323F.
Let's see your pictures of O Scale and prototype railroad construction and service vehicles.