Having never seen the french toast, I venture to say:
Get some firm dough Italian bread or perhaps Vienna Bread. If the dough is
on the sweet side, use Challah.
Get the fruit filling and make swirl loaf, then bake the loaf.
It may be much easier to call the bakery and find out how they fill the
french toast. They will tell you if you reveal that your elderly relative
in the far east has a last wish before going into surgery. :-))
Make the french toast with wine, eggs, cinnamon only == no milk.
Later,
Jazzbel