Sorry to report that the flying D-520 crashed a good many years ago now (circa 1990(?)) killing the pilot.
I was lucky enough to see it fly at La Ferte in 1988. There's been no plans to fly another, though the Musee de l'Air et l'Espace at Le Bourget has one on show and one in store, both good looking but (I think) missing some critical parts (I think they may have been 'robbed' to keep the flyer airworthy.)
One of W.W.II's great and overlooked fighters. The Vichy French used it, and then the Free French after 1944 (equivalent therefore to a Mk.1 Hurricane or Spitfire in service then if you will) and I think scored some kills with them. Any further light by someone better informed?
Cheers
James