Cutting the size block out that you want will cut down on the amount that you store. How ever. I caution that as you cut. Leave out any pieces that are cut, have holes, or tears. As these leave a bigger hole when washed.
Also watch the seams. On smaller jeans it is not to bad. But the double sewn seam on Levi and Wranglers can really give you some frustration. Trying to sew through them.
Your stack/stash of levi will grow a lot faster than you will realize. Especially when your friends and family realize that you are saving.
Cant wait to start cutting circles. I really like the cathedral levi. Ran across it two weeks ago. And downloaded the pattern.