Earlier I posted questions about an itinerary at: https://community.ricksteves.com/travel-forum/portugal/touring-portugal-then-salamanca-why-change-itinerary-order
The post was closed due to inactivity but for those interested I'm reporting back. Below was our rough itinerary. If I could have afforded to take more days off, padding in a few more days would have been nice, but it was pretty reasonable in terms of all the things we saw and no days were too onerous driving. If you do drive make sure you get an electronic toll pass where charges are automatically added to your credit card. Many of the toll roads did not even have the option to use a tollbooth. You can see photos of my trip at: http://www.danielginsberg.com/Travel/Portugal-Spain-2017/
THURSDAY, 9/14/17
Arrive in Lisbon airport.
FRIDAY, 9/15/17
Trolly to Belém, tour monastery, tower, National Coach Museum. Lunch in Belém. Tour Museum of Ancient Art.
SATURDAY, 9/16/17
Day in Lisbon including São Jorge Castle.
SUNDAY, 9/17/17
Side trip to Sintra by train.
MONDAY, 9/18/17
Pick up car and drive to Lagos.
TUESDAY, 9/19/17
Day around Lagos, dinner at Michelin star Bon Bon Restaurant in Carvoeiro.
WEDNESDAY, 9/20/17
Drive to Evora.
THURSDAY, 9/21/17
Morning in Evora. Afternoon to Nazaré via Obidos.
FRIDAY, 9/22/17
Day in Nazaré.
SATURDAY, 9/23/17
Drive to Coimbra with stops in Alcobaca, Batalha, Fatima.
SUNDAY, 9/24/17
Day in Coimbra.
MONDAY, 9/25/17
Drive to Salamanca (Spain).
TUESDAY, 9/26/17
Drive to Douro Valley. Rio Douro Hotel & Spa.
WEDNESDAY, 9/27/17
Drive to Porto. Drop off car.
THURSDAY, 9/28/17
Day in Porto.
FRIDAY , 9/29/17
Day in Porto.
SATURDAY, 9/30/17
Fly home.