Documentation for 1 is the 2004 Instruction Redemptionis Sacramentum: “[106.] However, the pouring of the Blood of Christ after the consecration from one vessel to another is completely to be avoided, lest anything should happen that would be to the detriment of so great a mystery. Never to be used for containing the Blood of the Lord are flagons, bowls, or other vessels that are not fully in accord with the established norms.”
Before the consecration it is simply wine, it is not called the “Blood fo Christ” or “Precious Blood”. At the beginning of Mass the wine should be in a cruet, and while wine, poured into the chalice. Documentation on this is From the 2002 General Introduction to the Roman Missal (GIRM) approved for the USA, which can be accessed from
romanrite.com/girm.html :
“142. After this, as the minister presents the cruets, the priest stands at the side of the altar and pours wine and a little water into the chalice, saying quietly, Per huius aquae (By the mystery of this water). He returns to the middle of the altar, takes the chalice with both hands, raises it a little, and says quietly,
Benedictus es, Domine (Blessed are you, Lord). Then he places the chalice on the corporal and covers it with a pall, as appropriate.”
If there is a deacon, it is his duty, from the 2002 GIRM “178. … He also assists the priest in receiving the people’s gifts. Next, he hands the priest the paten with the bread to be consecrated, pours wine and a little water into the chalice, saying quietly,
Per huius aquae (By the mystery of this water), and after this presents the chalice to the priest. He may also carry out the preparation of the chalice at the credence table.”
The documentation on purifications is also from the 2002 GIRM:
“279. The sacred vessels are purified by the priest, the deacon, or an instituted acolyte after Communion or after Mass, insofar as possible at the credence table. The purification of the chalice is done with water alone or with wine and water, which is then drunk by whoever does the purification. The paten is usually wiped clean with the purificator. Care must be taken that whatever may remain of the Blood of Christ after the distribution of Communion is consumed immediately and completely at the altar.”
“B. MASS WITH A DEACON
171. When he is present at the Eucharistic Celebration, a deacon should exercise his ministry, wearing sacred vestments. For the deacon …
e. Assists the priest celebrant in distributing Communion, and purifies and arranges the sacred vessels; …”
"192.192. Likewise, when the distribution of Communion is completed, a duly instituted acolyte helps the priest or deacon to purify and arrange the sacred vessels. When no deacon is present, a duly instituted acolyte carries the sacred vessels to the credence table and there purifies, wipes, and arranges them in the usual way. "
“284 … b. Whatever may remain of the Blood of Christ is consumed at the altar by the priest or the deacon or the duly instituted acolyte who ministered the chalice. The same then purifies, wipes, and arranges the sacred vessels in the usual way.”
Documentation on 3, appropriate dress for an Extraordinary Minister:
“339. In the dioceses of the United States of America, acolytes, altar servers, lectors, and other lay ministers may wear the alb or other suitable vesture or other appropriate and dignified clothing.”
From the 2002 GIRM approved for England and Wales:
“339. Acolytes, lectors, and other lay ministers may wear the alb or other suitable vesture that is lawfully approved by the Conference of Bishops (cf. no. 390).”
2004 Instruction Redemptionis Sacramentum:
“[153.] Furthermore, it is never licit for laypersons to assume the role or the vesture of a Priest or a Deacon or other clothing similar to such vesture.”
Rite of Commissioning Special Ministers of Holy Communion, Introduction, 29 January 1973, in journal Notitiae (1973), pages 165-167:
“13. The special minister who is to distribute communion is to wear either the liturgical vestment in use locally or clothing befitting this sacred ministry. …”
(From Documents on the Liturgy 1963-1979, Liturgical Press, Minnesota, 1982, ISBN 0-8146-1281-4, page 913).