I don't have a Kenyon, but when messing around with the reefing lines inside my Isomat boom, my plan if I were to lose a line was to push a line-fishing tape in from where I wanted it to go, out the other end where the line still was. Then tape the line to the fish tape and pull it back.
2000 Beneteau 331
Northern Chesapeake Bay
Ambition is a poor excuse for not having enough sense to be lazy ~ Steven Wright