I met a guy on our club ride from Cardigan - just up the road. He was back from a self-f guided tour Monchique, Zambujeira del Mar, Aljezur,Cabo de São Vicente.....
"this is sounding familiar !' I said.
Turns out he'd borrowed your routes and had bikes delivered to a hotel in Monchique - a good start - a long run down to the coast !