I am very impressed that you have been able to finish so many ufo's! They are wonderful and deserve to be shared with the world. LOL!
I also have to get on some of mine. I washed (very stupid)and pressed one that I started more years than I can remember ago. It is waiting right in plain view so it nags me everyday. LoL! Finish me.... finish me...
If you have a local consignment shop that might be a answer to your sale of your quilts. If you are a seinor you might check to see if they have a shop to sell items like this. There are two shops in my town that sell the items for the seinors for free. One is association The Assistance League. They are nation wide and thier shop is called the seinor sampler.
The other is through the Senior Citizen Center.