Until you find an AME willing to advocate for you with the CAA, you won't get anywhere.
Since Andreas Lubitz deliberately crashed an Airbus, CAAs are much more cautious with any whiff of a psychiatric diagnosis.
Ultimately you may have to find another CAA. The US AOPA has an excellent medical group that advocates effectively with the FAA, for one example. Other AOPAs may not be as well resourced, but could offer an educated guess on your chances and refer you to an appropriate AME.
You would have to run your medical file by an AME in that country to see if there's any hope, preferably before jumping through the immigration hoops.
There is the possibility that you would not get a Class 1 medical until you have been flying for a while.