Will the Austers be relegated to 2 seats? I would have thought that, now the PFA is approving 4 seaters like the Jabiru etc, that they would approve 4 seat Austers, Jodels etc also. Mine is a 2 seater anyway as the third seat is sitting on top of my cupboard in the hangar!
I would suggest that if you are specifically going to fly to see a house, cathedral or other building located within a town then it would be better to hire an aeroplane for the purpose. Not ideal I know but realistically, how often do you NEED to fly over a town rather tha skirt around it?