I agree with you Laurie that starting in Lisbon is a good thing.
My wife Nel and I stayed from December 24th 2015 to 8th of January at
Casa da Fernanda and there we met several pilgrims who were walking from Porto and they stayed at albergues. A couple from Brazil, some Czech ladies .
Yesterday I received an email from a German pilgrim ,we met at Fernanda's at new year's eve and he joined us to family of Fernanda to celebrate the new year.
He told me is is starting again just before Christmas this year and going to Fernanda and from there jump over to he coastal caminho.
So another idea for Andrea is to take the train to Porto and walk to Fernanda or 14 kms further to Ponte de Lima and from there return to Porto and Lisbon.