I wonder why they use the term "minister of the sacrament" instead of Bishop.
Because a priest may administer the Sacrament under certain very specific conditions.
Agree, it's not easy to find a sponsor, especially if you haven't an established chapel nearby. I would ask the priest or Bishop, himself for suggestions. Many of us do not have anyone who can meet the qualifications. It's a sign of the chaos of our times and a scattered, confused flock.