Sorry for the slow reply! That's interesting. Your public template works fed into a stream of clients. I guess what i'm curious about is who out there is willing to pay for a LaTeX template, or typsetting? Is it one-off academics working in STEM fields? Journals? Have you had much luck getting customers from outside of such areas? Businesses looking for slick invoices or brochures? Non STEM-publishers? I've got quite a lot of questions and ideas up this area - how would you feel about a chat?

Also great call about The Elements of Typographic Style. I'll add it to my todo list. Tufte - hmm yes classic text for sure... should probably get a copy too. So much to read!