Christ is in our midst!!
CKW2024,
An internet forum is not the place to find answers to the questions you pose. In fact, this seems to me to be a very serious spiritual situation. IMHO, you need to sit down with the priest of the Byzantine Catholic parish you want to enter and lay this out with him.
The question he may hit you with is how serious you are about where you think you ought to be in relation to Christ. The Orthodox Church has varying practices regarding Confirmation/Chrismation--some accept Catholics without a second Confirmation/Chrismation; some do not, as you found. Returning to the Catholic Church via the Byzantine Catholic Church may bring this up because the Catholic Church believes that this Sacrament/Mystery can only be given one time.
This is not like changing residences. This is big stuff.