There might of been an attempt to get a Cray II running but last I heard the LCM back in 2019 had been discussing a very large restoration of a single Cray I. Their biggest issue was the remaining machines all had boards missing and several memorabilia stores that had a known inventory were playing hardball and would not sell bulk unless they were paid extremely well. That whole plan went up in smoke when COVID closed them down.
ISTR they (or the CHM) had also tried to purchase a decommissioned CM-5 from Oregon State University but lost out on the bidding (which I still find hard to believe with Paul's Old-Man Money) and it was scrapped.