Hi Jeff
Love your Dreadnought on your thread, nice work!
The Harrow Dreadnought kits I have consist of white metal sides, but the rest of the bodies are resin so weight not too much of an issue. I have a Heljan met Bobo to pull them.
Know what you mean about the Harrow LT unit kits they are darn heavy and take a bit of shifting.
Regards
John