Do you have any local guilds in your area? Maybe they will allow you to set up before a meeting?
I sold a lot of my stash at yard sales - and then I sold the rest of that as a bulk fabric purchase on Craigslist. I was so happy to be rid of it.
Recently a woman contacted me to see if my guild would take her late mother's stash. I now have over 2 dozen boxes of stuff in my garage. I'll be bringing it to the next meeting to let the ladies go through it. The rest of that is going to be given to a retirement center so it can be used.