Chicago researcher looking for expired or empty PD bags

I'm doing PD research and I'm looking for some expired (new) or empty (used) PD solution bags that you won't need anymore. We're looking for 6000 ml, 5000 ml, 2500 ml, and 2000 ml sizes so we can perform some tests. We're just going to fill them with water, so we don't need the fluid in the bags. We do need the bags to be undamaged though.

It's ok if they're still attached to the disposable tubing set. Would prefer Baxter bags, but could use Fresenius or other bags if needed. I'll pick them up if you're in the Chicago / Milwaukee / NW Indiana area. I certainly don't want to take any bags that you need for your therapy, but would be happy to help you recycle some that you don't need anymore! This will help us with research activities that will benefit patients in developing countries. Our goal is to make PD therapy quicker, easier, and affordable for people who are paying for it out of their own pockets. Thank you in advance for your help!