Personally..........I would take a trip down there and have a look around yourself. I know it is a bit of a long day out for you, from Bucks, but you can only get a small feel for the place through an OFSTED report.
I dont know how well you know the area, so maybe it is also the time to take a look at housing etc and see what is down there for you.
Phone the schools you wish to see, before you go down - go with an open mind - list of questions and remember that now, you will be on the W/L for the one you possibly want. Different people look for different things in schools, ie. sport, academics, facilities and what suits 1 child might not suit another.
Go yourself, if you possibly can, and make your decisions about proceeding after that. Good luck with whatever you decide - I know it is not easy!