***Today, the unconsecrated hosts and wine "fruit of the vine and work of human hands" are carried up to the priest by the faithful, at each liturgy.***
Are you saying these are the "Levites"?
There is a very ancient tradition in the Church of calling deacons "Levites". For instance, in the Epistle of St. Clement, we read: "For unto the high priest his proper services have been assigned, and to the priests their proper office is appointed, and upon the levites their proper ministrations are laid. The layman is bound by the layman's ordinances." (40:4, trans. J.B. Lightfoot).