It looked to me as if the lintels may have been “megalithic” when I did a search when I got home that evening I was happy to see that I had the same theory as Anthony Weir on his website.
He also mentions possible alignments with the Galtys which I have to be honest I didnt see. This is a lovely site and a place where you could bring anyone (non-megalithic) for a quick stop and I think they would be impressed. So I think I will drop in here at another stage.