Hi Susan,
I see from my Pilgrim Record that I had 16 walking days from Oviedo to Santiago. I could easily have done it in 15 or less. I took extra days off in Grandas de Salime and Lugo. There would be no need for a tent until you get to Melide, when you will have 2 or 3 nights on the Frances which was very busy in May last year and will no doubt be even more so later this year!
I had no problems finding the route except in leaving Oviedo itself - details of the way out of the city are here:-
camino-primitivo/topic6373.htmlAs always care is needed round any road works, although I found that the diversions were marked.
You will be away from the 'tourist' scene once you leave Oviedo. I found that a knowledge of Spanish was a great help, English speakers were few and far between! There were other pilgrims around in May last year so I would expect that you will not be short of company in the evenings. it is though a beautiful route if you like walking alone! Have a look through the older posts under Camino Primitivo.
Buen Camino
Tio Tel
The Tree of Shame became the Tree of Glory, and where life was lost, there life has been restored.