Hello. I saw your mod on the updates list and had a question.
There was a previous mod to kapaer's original "Beautiful Bridge Railway" called "Beautiful Bridge Railway Bob Fix" (by DarkNova) that updated the original mod for Bob's Mods. From your description, I'm to understand that your mod does the same thing as DarkNova's, but dynamically and thus will work with any mod that changes the base rail ingredients or cost?
Sounds good regardless. I'll give it a try.