Custom fret templates
One of the things I do for other makers of fretted stringed instruments is build precision fret templates to any specified scale length. I've built templates from everything from ukulele to bass guitar. And each template is accompanied by a certificate of accuracy, showing the error of each slot in cents (hundredths of a semitone). I hold the error to less than ± 3 cents, far more accurate than laser-cut or molded templates.
Each template can have one or two scales, cut into the two edges of the template, which is 1/8" structural aluminum bar. Widths available are 1-1/2", 1-3/4", 2" and 2-1/2". For more info and an order form see my web page, https://bearmeadow.com/tools/fret-template/index.html