My advice is to do a lot of research, I honestly don’t think a “the Camino will provide” attitude while very attractive is necessarily the best for your intended trip.
The best place to start is this forum, there’s a good guide in the resource section.
Read through the posts from forum members, Bad Pilgrim, Beatrice, Magwood, and others.
There are a number of guides published by various Amigos associations, with maps, Albergues, etc etc, find them on line.
The Mozarabe is very different than the CF, usually fewer pilgrims, less infrastructure, usually further between arrows, I found GPS while not essential occasionally useful especially when exiting towns.
About camping, read FAQ’s, think about pack weight.
Use “Earth” to look at the terrain.
Find a companion, I’ve been very lucky in my travels along the Mozarabe, both times I enjoyed the company great people.
Easter may impact on accommodations, depends where you are.
Shops and bars tend to be less frequent than on the CF, some days you will struggle to get an early coffee or breakfast.
Cost, probably the same, depending on accommodation.
Regards
George