I am convinced that I have solved all the enigmas correctly!
The last ‘doute’ is still inflicted on me, but in a limited way! This will disappear soon and then I will start packing my stuff and start my travel to France.
Within a month the bronze owl will be unearthed and almost 30 years of history will belong to the present.
Like you, I believe I know exactly where it is and even have my ferry booked, but stupid Covid hysteria has prevented me travelling to date. Trouble is, until you have it in your hands, it could all be speculation.