Most Three.js configurator demos stop at the visual. The customer rotates a nice model, picks a color, and that is the whole show. But the manufacturers I build for do not sell models. They sell a product with a price and a delivery date. The question that closes a sale is not "does it look good". It is "what does THIS configuration cost, and when do I get it". That second half is the part nobody puts in a demo. Here is how I build it. The configuration is the only thing that matt...