If you have your heart set on trying the old stuff asap and having the convince of it shipped to your door then go for it. However, it is available in a lot of antique stores for $8 - $15 for an unopened packet. If you're into the whole antiquing thing, visit a few stores and I have no doubt you'll come across a package of it.
Reading the title I must ask what happened to the other brother? Did he age out?
I think for smoking a new pouch would be a little better. As an earlier post says, burley doesn't improve much with age. If you buy it, let us know how it smokes.