First, hello and welcome to the forum. Secondly, dealing with SWK is not a 3-4 week ordeal, it can usually be done within a week, especially if ordered online. A prepaid MasterCard from Walmart would take no longer to obtain than buying a money order.

I do not feel a military surplus blanket would make a suitable kilt due to the courseness and weight of the wool. There could also be issues of piecing the material together, to get a suitable length, to create the pleats. With the hot Texas sun, especially during the Arlington Games, would also make it a bit uncomfortable. Of course this is only my opinion.

I admire your desire to make your own kilt, and I feel there are better options for you to acheive your goal. There is a Xkilt instructions on the forum, which can help you make your own kilt. There are many threads concerning fabric, weights, and pleating options, that should help you make a more suitable choice of material to use.

Once again, welcome, and I wish you well on your kilting, and know you have come to the right place to get all the information, you can use.