As David has said, the cost for the cloth would be $65 per yard, for heavy weight wool -- this cloth has a traditional kilting selvedge and is my preferred cloth for working with (and wearing!) in a kilt. If 30 yards or more are ordered, it can be woven 54" wide.

As for timing, I would have to have payment for the cloth before the order was placed with the mill. So that would be $65 times however many yards you wanted to order. So I'd just ask for people to post here in this thread how many yards they would be interested in ordering, and once the number got above 30, I'd set some time limit for other people to join in and then close the order. At that point I'd send out invoices and once payment has been made the order would be placed.

Custom runs of cloth will typically take about 12 weeks. Once the cloth is in, then anyone wishing to have a kilt made would pay the kiltmaking fee at that time (either with me, or whatever kiltmaker you would be using).

What this means, for instance, if someone were ordering a 4 yard box pleated kilt from me would be that $130 would be due when the order was placed, and $220 (plus shipping) would be due when the cloth was here and the kilt was ready to be made.

Right now lets just see how many people would be interested in paying $65 per yard for 54" wide heavy weight Carolina tartan wool.
Aye,
Matt