She's over 5K-ton and almost 350' long. That would be one hell of a pavilion.
It would be great to restore her and sail her again, but I'm sure that would cost well in excess of $100M, just to make her seaworthy again. The $20M they're asking for probably only covers paint and limited minimal repair over a fairly short period of time.
Seaworthy? How about float-worthy? She hasn't moved in 50 years, from what I can gather.