This thread (
https://www.caminodesantiago.me/community/threads/lleida-to-logroño.59146/ ) might be of some help in taking you up to Gallur. After that, gronze.com (
https://www.gronze.com/camino-ebro ) and mundicamino (
http://www.mundicamino.com/los-caminos/21/ruta-del-ebro/ ) will be your friends. You will find these sites as helpful as can be, but there is little traffic on this route -- I encountered only two other pilgrims when I was on the Tarrega-Gallur stretch-- and so not a lot of information. My other notes on the del Ebro can be found at this link (
https://www.caminodesantiago.me/community/threads/my-september-catalan-ebro.44186/ ).
I loved walking by the Ebro and perhaps one of these days might do the Gallur-Logrono stretch. This is a really interesting and very Spanish part of Spain. The people are very helpful toward pilgrims-- turismos, ayuntamientos, police, and clergy were all warm and supportive, as was pretty well every restauranteur and barkeep. Watch your water, and you'll have a great time.