I thought I'd update this thread and report the resolution I received from OBK related to these kettles. I ended up deciding that I'd rather take a refund and start over with another manufacturer. OBK then decided to offer me a discount to keep the flawed products I'd originally received. I've decided that their offer was more than fair given the circumstances, and agreed to take it.
I'll have a bit of tinkering to do on these to fix some of the damage, and I'll be living with a few misaligned ports. But all in all, I think it worked out as well as it could have given the circumstances.