Were Ok at the moment with the real one at LHR.
There are a lot of arguments against doing what the french did at CDG (and with the one in Germany). Once stuck up on a pole you can get at it easily to do any maintenance. Additionally it was not designed to sit at that attitude. When it rains the water does not drain correctly and you will end up with corrosion where you least expect and can't get to it, so bad idea all round sadly.
Lets leave the stuffed on a pole stuff to the models