I doubt the license is worth that much. Radio is a media on the downside.The value of WLKK depends on whether the license comes with the stick, translator, and property. According to FCC records, the tower belongs to K2 Towers III LLC, which means that a new station owner will need to work out a rental agreement for the FM. If Audacy sell the station, it's unlikely that whatever grandfathered deal they struck will be transferrable. The other option would be to try to find a new tower site, but it's unlikely that it would improve the signal in the Buffalo market. That idea has already been studied by numerous engineering firms. Either way, it will impact the real cost of the station for a new owner.
Depending on where the property is and how much property there is would be a hard asset, so it would probably be easy for a bank to finance property.
The tower is most likely another owner. Why would an FM want to own a tower? I guess the question would be the lease agreement on the antenna for the tower.
It seems Audacy way overpaid for the license. The other things are tangible. That station now does very little revenue, has very few listeners and appears to not have many hard assets like buildings. You said it has land, but is the land very valuable?