I began this quest of mine by contacting the Senior Archaeologist at Cornwall's HES (Historic Environment Service) as they work directly with English Heritage, Natural England and local landowners and Commoners to ensure the best management of the archaeological sites on Bodmin Moor. They also work with local volunteer groups being set up such as the Caradon Hill Project and the CAS who aim to carry out vegetation clearance and monitoring at sites across the moor.
It was suggested I took the short cut as I was wanting to remove the actual turf from the stones and not just remove the vegetation such as gorse bushes and bracken which is allowed. I was more concerned about the stones that had fallen just below or level with the surface because vegetation clearance doesn't allow for this so consulted with EH due to their designation.
EH then arranged for me to meet a Field Officer on site to discuss the situation and I thought it went very well but await their decision. I have been asked in the interim to become a 'Monitor' for them (lots of people do this) when I visit the more unvisited sites and report back directly to them on the condition of the sites which of course I'm more than happy to do.

Just as an aside and while the officer was in the area, I asked if there was any chance that the big triangular stone I had discovered at the Hurlers could be re-erected. 'There is no triangular stone at the Hurlers' was the reply. Not so said I and took her to see it. She was of the opinion that it should be re-instated and was going to recommend it. Let's wait and see.