In the FAQ, it's stated that you can only have combat-trained police officer metalbender. I may have been mistaken in reading that, but I was wondering...

Do metalbenders create the frames for Cabbage cars/Satomobiles? I didn't think they had the heavy machinery to automatically shape the metal as it needed to be. And would this conflict with any metalbender?

I was just wondering. If it turns out that the rule is, you must be a police officer to use metalbending in combat, but anyone else who is able to metalbend is okay (so long as they don't use it in combat), then maybe this question isn't necessary.

Still, give me thoughts/judgements if you can =] Thanks!