As others have pointed out, the feature point of "bulk purchasing from manufacturer" is incompatible with "Custom tailored shirt". You can certainly get a dress shirt for $30 or less at stores like Target, JC Penney, Walmart, etc. but doing real custom shirts require skills and at least an hour or two of work. I watched my mom sew growing up and she's a professional sample maker at a fashion company in Los Angeles and here's the steps I can think of off the top of my head to make a custom shirt: 1) Get your measurements 2) Draw a pattern that conforms to those measurements 3) Cut cloth to pattern 4) Sew pieces together 5) Insert the collar structure 6) Sew buttons 7) Use appropriate buttonhole stitching 8) Sew labels on 9) Iron and press shirt.