Working on vinyard in Cinque Terre - need contact

I noticed in the video on Cinque Terre, that many of the farmers cannot get the work done on their vineyards because the young people are not interested. I would like to stay there and exchange labor for lodging - help one of the farmers work on the vines or walls in the mornings and be a tourist in the afternoons. Any way to contact one of the farmers to arrange this? Yes, I've worked with my hands all my life and grow trees and vines ;)