Sorry to disagree

…but the Church ***has ***specifically denied the validity of the SSPX marriages and confessions.
There are many sources to prove this. **Any **priest that incurs
suspension a divinis no longer has faculties to celebrate any sacraments. While his Mass/Eucharist may be valid but illicit, his absolutions and marriages remain invalid. see Canon Law for details…
The “dice roll” does feature…in that, objectively and by the Law of the Church, these sacraments are invalid. But subjectively…that is another ball-game. Does being sincerely convinced render them valid? Not likely. Perhaps,
Ecclesia Supplet comes into effect for souls who are genuinely convinced. Anyhow, not a great position to be in

salvation’s not easy any which way you look at it.
This extract from the letter of Msg Perl (to an enquiry by one of the faithful) gives many points for reflection.
"b.** While the priests of the Society of St. Pius X are validly ordained, they are also
suspended a divinis**, that is they are forbidden by the Church from celebrating the Mass and the sacraments because of their illicit (or illegal) ordination to the diaconate and the priesthood without proper incardination (cf. canon 265).
“f. You want to know how authoritative our responses are. We Must indicate to you that this letter accurately reflects the practice and pastoral solicitude of this Pontifical Commission, but it is not an official declaration of the Holy See. Those declarations are fundamentally limited to Quattuor abhinc annos of 3 October 1984 and Ecclesia Dei of 2 July 1988, both of which were published in the Acta Apostolicae Sedis. The Holy Father does not ordinarily make detailed statements on very specific questions such as those which you have submitted. He entrusts such responses to the various dicasteries and organisms of the Holy See which have competence in particular areas. With regard to the matters which you have brought up, the competence belongs to this Pontifical Commission.”
Code:
"g. The Pontifical Council for the Interpretation of Legislative Texts rules primarily on the interpretation of the law. Any more Authoritative response to your questions than the one we have given would be more likely to come from the Congregation for the Doctrine of the Faith. The fact that that Congregation has transmitted your dossier to us indicates that at this time our response should be sufficient. Statements of dicasteries and organisms of the Holy See which touch on faith and morals are not considered infallible, but should be taken as norms of moral certitude."
"i. Our response to your questions may be made public."
ewtn.com/library/curia/cedsspx2.htm