Wow! You do have quite the stash! I'm sorry I can't help. I have equivalent to one of your shelving units. I've never sold my fabric. Too bad you couldn't make the quilts and sell them, I would think that you'd get more bang for your buck. Considering that I've made three quilts recently and it doesn't even seem that I've put a dent in my stash, that would probably take you a very long time to see results.
If the reason you can't ship due to lack of funds, you could always wait until you receive payment for items that you sell on here first, then ship. Your stash is nicely organized though.