I've seen several USA Kilts semi-traditional in Polyester-viscose (Panache and monkey@arms) and I would buy one without hesitation. Then again, they ARE $220-$260. The casual model USA Kilts is a lot less expensive, but because my tastes have turned to the somewhat more traitional since I started this kilt thing, the USA Casual is now my "workout and backpacking" kilt.

When I talked to sportkilt last, they wanted $30 a yard for their fabric. Whether they will make a habit of selling fabric, I don't know.