Tell you what, Ladislaus. You do it your way. We'll do it our way. And we'll see who gets there first. May the best men win. And we really mean that.
If you can't see you're setting yourself up for failure if you want to secede completely from Rome (apart from that being incompatible with Roman Catholic ecclesiology in the first place; and the defined Church dogma at Vatican I of Rome's primacy of jurisdiction), then suit yourself. Tradition won't triumph in Rome by our running away from it. Do we wish it to triumph there or not?
Matthew, no doubt you have more experience than me. And Bp. Fellay and the Society leaders have more experience than any of us. I choose to trust them. We will agree to disagree.
Edit: This is Bp. Fellay on the Society Bishops after the Year of Mercy: "As a result of the Pope’s act, during the Holy Year, we will have ordinary jurisdiction. In the image I mentioned, this has the effect of giving us the official insignia of firefighters, whereas such a status was denied us for decades. In itself, it adds nothing new for the Society, its members, or its faithful. Yet this ordinary jurisdiction will perhaps reassure people who are uneasy or others who until now did not dare to approach us. For, as we said in the communiqué thanking the Pope, the priests of the Society wish for one thing only: “To perform with renewed generosity their ministry in the confessional, following the example of untiring devotion that the saintly Curé of Ars gave to all priests.”
https://fsspx.org/sites/sspx/files/lfb_85.pdf