I haven't gotten to make any new scales in a long time so I haven't been ordering online. I'm not familiar with that site.
Speaking of guitars, I remember seeing some fretboard blanks online that looked like they would work well. I believe they were also 1/8". It was some time ago so I don't remember the dimensions. Fretboards are usually made of rosewood, ebony, or maple. So, there are some good options.i bet Birdseye maple would look nice.