Here’s how to work through the wreck of distributing Arecibo’s remains.
Pieces that deserve museum preservation should get it. The National Science Foundation (NSF), the facility’s owner, should give first dibs to places where Arecibo’s ethos is most important to show. The second round of picks go to all other institutions with a moral or financial stake in the observatory. Both are valuable.
After NSF distributes all it wants to, that will still leave a whole lot of sheeting, cables, spars, and other equipment. So, simply transfer the remaining wreckage to a “Friends of Arecibo” branch, if necessary.
Consult space-object collectors, memorabilia auction houses, merchants of celebrity frames, fan conventions, and so on. They know what buyers want, and what they don’t.
Every piece should come with a certificate of authenticity, plus photos of its original position in the working scope. Bent and broken pieces dramatically highlight the powerful forces of nature.