Greetings. Came across some Scan Speak Drivers, not sure what to do with them?

Kind of a long story. A golfing buddy of mine passed away - far too early. He was something of an audiophile and a packrat. His widow asked me to help clear out all his stuff. I ventured down to their basement and was amazed when I started looking in all the closets and boxes and bins of stuff. Hafner amps, Audeze headphones, etc. A lot of gear. I have spent a lot of time hooking gear up and making sure it works before trying to find a good home for all of it. Sold a bunch of stuff on ebay and raised a few thousand dollars for their Grandkid's college fund. His widow and I agreed that we did not want this stuff ending up in a landfill. My latest find is eight 5" Scan Speak 13M/8636-00 and four 8" Scan Speak 21W/8554-00's. They were packed carefully but not in their original boxes. They look brand new. I can hook them up and make sure they work, but would be surprised if they don't. So the questions is, short of embarking on a speaker build project (which I am considering), what do I do with them? What are they worth? If I were to sell, I would want them to go to someone who would build some speakers and enjoy them. I am going to do some research, but this site seemed like a good space to get some input. Thank you.