There's not much to lose Clive, especially if you've got wire available. Steve has gone for the "Full Monty" but a receiving aerial can be done on the cheap and it might depend on where the receivers are located. The higher the better as they said in your period [the 20's and 30's
] is the usual rule but you can often run something just along fence and get good results. So many factors and ideas but just try it out. I've used biro cases and all sorts of things as insulators in the past. Mostly neighbours are fine but I don't advertise and many rigs have been pretty much invisible anyway
Dave