That crossed my mind, but I didn't know whether it would be plausible that the same group crossed from Ireland to mainland England. Maybe they built the Kings Men circle on the way to Avebury. I'm think the similarities are striking but maybe it's a coincidence, but even the backdrop looks similar to the Rollrights if you're south-facing.

I know on previous threads that there's a line of thinking that the circles were nothing more than a corale. I personally don't believe that but I'm fascinated how Beltany and Kings men individual stones' are in such close proximity to each other and have defined male and female shapes and are so alike, whilst differing to other stone circles that are closer geographically.