I'm worried about the wheels in how they'd go around curves. Big bogies with extra thick wheels doesn't sound like good news for short curves. I'm fine with their appearance.
Also, after some research I've decided to change from a NSWGR C30 class to a South Maitland Railways 10 class
https://en.wikipedia.org/wiki/South_Mait...s_10_Class
Also, after some research I've decided to change from a NSWGR C30 class to a South Maitland Railways 10 class
https://en.wikipedia.org/wiki/South_Mait...s_10_Class