Thanks all.
We assisted by relaying to the pilots of the Cessna when they were considering either Milfield or Eshott. The NCL controller went the extra mile in giving them advice of nearby airfields; however he was understandably restricted in the offering of vectors because the aircraft was not positively identified.....a frustration for both parties I am sure.
Those O-470s in 182s suffer horrendously from carb ice...I wonder if this was a factor?
A happy ending nonetheless.
If any of you know the pilot(s) please get them to PM me.