I don't think Rover frames came galvanized. They've got an even dumber and crappier setup than Toyota.
Fully boxes and very thin gauge.
There's a well known Rover shop nearby, I'm actually having lunch right now a block away. Bishop+Rook. Worth looking at, they do really nice work.
He said...
I was looking at a company locally. It as a black zinc chromate of some sort. According to their website, it can be painted. What all that entails for paint, I'm not sure. I need to speak with somebody and get a better understanding.
When the time comes, I'm curious what just that blank...