Yeah there's some intriguing looking slabs and outcrops lying around which is why I'd love to see the site cleared out. I did have a quick gander at the pavement for some RA seeing as how there was some found nearby but there's too much moss and lichen.
Did you see the fantastic stone standing in the field wall, about 6ft high? It's got a profile very like the Doagh holed stone but with a small shoulder on the longest edge. Sticks out like a sore thumb in the low wall.
The tomb does seem to point direct to Mount Leinster, interesting observations by the two guys that made that report would be great to follow up.