Based on the above assumption, then yes.

There is another point to consider, the cafe opposite was demolished and the hotel that was going to replace it objected to, in part because of accidents and the dangerous junction. Rebuilding The Sanctuary would prove a considerable distraction, add to parking on the Rigeway. A lot to consider then and there is the very serious prospect of more yet accidents on this stretch between West Kennett and Clatford.:

March 2004:
http://news.bbc.co.uk/1/hi/england/wiltshire/3503520.stm

April 2008:
http://www.thisiswiltshire.co.uk/news/2214817.horsebox_in_collision_near_fyfield/

Oct. 2011:
http://www.gazetteandherald.co.uk/news/9284228.Calne_cylist_injured_in_crash_near_Marlborough/

Aug 2012:
http://www.thisiswiltshire.co.uk/news/9852717.Teen_cyclist_dies_in_Marlborough/

Earlier this week:
http://www.swindonadvertiser.co.uk/news/10173253.Jackknifed_lorry_blocks_A4_near_Marlborough/

Now:
http://www.thisiswiltshire.co.uk/news/10176935.Man_killed_on_A4_at_Fyfield_is_named_locally/

I didn't really pitch the question well enough did I. What I should have asked was if the parking, road and all safety angles and other problems such as the remaining archaeology were dealt with satisfactorily, would you like to see the circles reinstated with new stones to give it a 'feel' and similar look to that of Aubrey's days to make it more visually satisfying?
I wouldn't object myself as long as it looked the part as much as possible and was made quite clear on information boards. And of course whilst being carried out a further chance of studying the archaeology would be possible.

Got to be better than horrible concrete.