Have you found a person who could help you?

I'm not sure if he could accept it privately or not, but I'd recommend you to contact him, just in case.

If I remember rightly, his name is Mr. T.kurata. ( St Germain-en-Laye. )

And I remember that there is a company for it in the building diagonally opposite to the Laduree at Champs Elysees。

I hope you could find it easily!

参考になった