I'm not sure what a fabric scanner is or how its used in producing tartan material. But most weavers have a minimum yardage when doing a custom run of anything. I've seen everything from 30 yds to 100yds. If you are wanting material to have a kilt made, then your best option is to get it from one of the Scottish mills. Yes, its expensive. But consider it an investment. A kilt will often out live its original owner. If buying an 8yd kilt is still out of the question, have you considered lower yardage kilts? That will reduced the price some.