I hear you, and I can re-assure you that I am very particular when making things and I would not want to offer sub standard items. This material that I have found in Aus is awesome and it is SS so quality is no problems. Drano and myself have teamed up with cad files and he has stepped out first in going into production and proved the files are accurate. He says his are home made but he has a huge museum workshop with cnc's to do an array of awesome things at his finger tips. My intention is to use a laser company in Sydney to try and lower the cost per unit so the quality of work is there and I use to build and operate laser machines so I have prepared the files accurately for Drano and myself so I can ensure you it will be a quality product.
Basically I am very principled and it bugs me how some people are profiting off others to the point of taking advantage.
Here is Drano's thread on pinside
http://pinside.com/pinball/forum/topic/home-made-mirror-blades