Hello KOSTAS
I know that an original CMP ambulance is stored in the museum in the town of BAYEUX situated in NORMANDY. As many CMP these truck belong to the last batch of CMP vehicles which were sold in the haven of BREST at the end of the 70' years. Most part of them were buyed by european military vehicles collectors and the ambulance arrived in this museum.
Unhappily I have never visited the museum and certainly the truck is stored in a shed but I have founded the email address of the manager of the museum : the docteur JP BENAMOU.
I give you these one with the hope that he will answer.
benamou.jp@wanadoo.fr
Nevertheless I think that the truck displayed in your last post should be a F60L and not a 30cwt as you are looking for.
Best regards Serge