I haven't walked this camino but made this accommodation list three years ago:
Faro - Baixa Terrace Hostel - singles €26, dorms €14
Loulé - Loulé Careto Hostel - singles €30, dorms €12
Salir - Casa da Mae - €38 (€32 w/
Booking.com Genius discount)
Almodôvar - several options on Booking from €35-45, e.g. A Casa da Vila
Castro Verde - Hotel Vila Verde €53
Messejana - A Praia da Messejana €90!
Santiago do Cacém - A Deolinda €40
Roncão - Vivenda Palheiras, entire home! €50
Grândola - Casa Vaz 2 - €41
Alcácer do Sal - Alcácer 4Ever - €38
Vendas Novas - MIX inn, €55
Benavente - O Cantinho €40
Santarém - Santarém Hostel, dorms €24, single €48
For more info and links, see this thread:
The Caminho Central is one of the three caminos being developed by the Caminhos de Santiago Alentejo e Ribatejo, a government-tourism project (along with the
Caminho Nascente and
Caminho da Raia). It begins in Faro on the Algarve coast of Portugal and ends in Santarém (about 20 stages by the looks of it), where it joins onto the main route of the Caminho Português from Lisbon.
Resources:
Official Site - includes GPS tracks and a free downloadable guide. The guide only covers the stages in the Alentejo and Ribatejo, but this is almost all of the camino, missing out...