I have 58001, one of the original Hornby locos that was in the Midnight Freight boxed set from the mid-80s. Great train, and had minimal wear + tear from my younger days! I recently converted it to DCC, so I'm looking over this and your weathering video for inspiration! Thanks for sharing.
Glad you found it helpful and enjoyed it. I put all the Class 58 project videos under one page at oorail.co.uk/hornby-class-58-project/ so hopefully that will make it easier to follow. Sorry about the delay, looks like I had a ton of unanswered comments that RU-vid wasn't presenting to me. They just added a new feature that lets you see unanswered comments, and so I'm playing catch up! :)
What a good idea, it does look a lot better, it's surprising what you can do with a lick of paint, it's enhanced the model even fever. Happy Modelling, Phil