Considering a move from U.S. to Portugal in 2019

We are exploring retiring to Portugal next year and have a ton of art-related–and DPW questions.

Assume we have European DPW members so I’d love to hear how DPW works for you in the EU–for example, it is difficult to ship art between EU nations? Parts of Portugal are booming with tourism but the average Portuguese citizen’s wages are still quite low so I’m speculating online art sales would be to visitors perhaps seeking a memento of their trip.

Additionally, I’m curious about availability of oil paint brands, standard canvas sizes, etc.
Any EU-member insights appreciated!