It's a ridiculous position to find oneself in. I work my gundogs at a local pheasant shoot, the grand house of which is a castle. The guys there know I fly a Phantom and asked me if I would consider using it to photograph some of the more inaccessible parts of the roof, chimney stacks and stonework to assess the condition of the stonework, some of which had not been examined for years.
I felt a little embarrassed but agreed to do it. I had two mornings there, on the first occasion filming from ground level, and on the second from up on the flat roof. The head mason was with me, directing me as to what he thought was of particular importance. They were absolutely thrilled with the result, the images revealing detail well beyond their expectations. They freely admitted my use of the Phantom had saved them a huge amount of money.
When they asked me what I charged, I was unable to answer, insisting it was just a hobby and that I was looking for no financial reward. Truth be told, I think on this occasion I shall settle for an evening with some friends on the castle's snooker table, the evening perhaps stiffened somewhat by a bottle of their own branded malt!
I related this story to a fishing guest whereupon he immediately invited me to take on the job of filming a section of the river Spey for inclusion on his web site. Really, I'm beginning to think I'm in the wrong job! Best of luck to anyone - and particularly the original poster - if they are enterprising enough to maximise whatever opportunities come their way. The work is most definitely out there.