I found this by complete accident when I was looking for something else:
http://www.geocities.com/jilaens/seahenge300.jpg
Wow! If you can find the copyright holder and get permission I think that would be you sorted.
I also saw this on the same page: http://www.geocities.com/jilaens/newgrange_int.jpg How on earth did they get permission to take a photo inside and put candles all over the place?! Feck sake, I need two million in insurance cover before they'll even consider me taking pics inside.