I don't know the model, it was one he had lying around with a convex glass. According to him, the convex curve is pretty similar across almost all mirrors. As I recall, he supplied the mirror, cut it, polished the edges, and glued it into the holder for $18US. I don't know how he made anything on the job as he spent a good half hour with it.
BTW, he wasn't an auto glass guy. He had an"art glass" shop that did custom windows, stained glass work, and such. His specialty was making and repairing church windows. As I recall he had a wet bandsaw with a diamond blade to cut the mirror.