Walrus...
...is there an empty mess at Lossie?? Will it have a suitable abseiling wall?
I suppose it's a variation of the old theme of "Resurface the runway" "Close the airfield."
Was the special building at KSS a PFI contruct? Seemed suitably shoddy in that the roof blew off with a stiffish wind (as did the OPs block roof).
The Ancient Mariner