Hello; If you do not find anyone to take the JD's after a while, you may consider the fish shop called the Aquarium off of Papermill. I took in a pleco some time back when neighbors lost their home. It out grew my available space and I did not want to set up a large tank for the one fish. The Aquarium folks took it. They did not pay anything for the pleco and may not for the JD's.
I do not think it likely that I can help you out as I only have a couple of 30 gallon tanks empty, but not set up, at this time.
good luck