I emailed Goyard's Paris stores and they replied me! They said the St. Louis tote PM would be 545 euros plus an all inclusive shipping fee of 150 euros...
The PM tote used to be 485 euros but they increased its price on April 1st, which is like a week ago... For the GM one, it used to be 570 euros before the price increase and I am not sure how much it is not. And you have to pay the 150 euros of shipping fee if you order it from one of the Paris stores. I think it will be cheaper if you ask your friend to buy it for you in Paris and then send it to you! Sorry for this late reply! Hope it helps!!
Thanks!