1 pointIf it's not for profit and you credit Google I think you are OK but check here for the full terms. ---- https://www.google.com/permissions/geoguidelines/
1 pointIt certainly has changed, even in my time, I had a look on Google Street View but couldn’t recognise much other than St. Mary's. I will be very interested to see the modern photo's. Have you seen Patrick Dickinson "Walking Through the River Porter Culverts" on YouTube, I haven't time to look at it again at the moment but he must have gone through that one.