Note regarding February 2nd:
The date does not appear to have been chosen arbitrarily by Father Pagliarani. After Archbishop Lefebvre decided to consecrate bishops and considered various dates internally, the actual date was publicly announced on February 2nd, 1988.
In the biography of Bishop Tissier de Mallerais, chapter 19, "New Ultimatum" states:
On February 2 Archbishop Lefebvre confirmed the news: “I am resolved to consecrate at least three bishops on June 30, and I hope to have the approval of John Paul II. But if he were not to give it to me, I would do without it for the good of the Church and for the continuance of Tradition.”