Hey, swingdude! I know this is probably asking way too much, but if by "won't be making anymore....PITA" you mean that you really are never going to be making any more chesties, maybe you would not mind publishing in the open forum your specifications for making them ourselves. I own a Speedy Stitcher hand held sewing device that works amazingly well, if slowly. If you published the various lengths of webbing needed, and parts numbers for the buckles, we could all make our own.
Also, if you bothered to do that, at the same time you could publish an address at which you would not mind receiving mail from strangers. People could send you cash or checks unsolicited by way of saying thanks for sharing your ideas. No labor on your part after the initial time spent writing up the instructions for assembly. Maybe the money would come in at a steady trickle. Just a thought.
Tim