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Theres a good ministerial reply to a letter from a Mr. Little but his letter isn't there its just reply mentions possible aircraft lanes and new navaids NDB and VOR with routings with reduced LSALTs its interesting starts page 177 of the archived file. The minister or spokesman for explained an NDB would cost about 80k and a new VOR about 250k. Ofcourse now you could have an RNAV laneway or something similar, everyone has GPS now right even Unltralights
Looks like the Ministers name was Wallace Fife
http://en.wikipedia.org/wiki/Wal_Fife