In short, I've spoken to Carl about a VapoWorx tank and I'm getting one for my custom frame. With all the added benefits I will be receiving, I don't care what it cost.
I'm just waiting on my frame to be done with the narrowed frame rails so I'll know the dimensions. And yes, Carl is a class-act. He explained everything to me thoroughly where I can understand. He even gave me a follow up call. Now that's customer service.