Morning Alan,
Time you were coming back here as you can see things are going a bit awry and needing your superior expertise to sort out !
With regard to EC-CGV. The Spanish register gives it as previously being registered as N9552N so that doesn't help the cause. Just to confuse things further, it also states that it has been in storage since September 2009 at Cuatro Vientos. It does however confirm it as PA-28-180 with c/n 28-7305583 so at least that looks right !
Ian