I have heard that he has not been conditionally re-ordained, but I don't have any proof.
First, it is not incumbent upon anyone to prove
someone was not
conditionally ordained; it is incumbent that conditional ordination is proved.
Second, the best solution is to ask him if you wish to attend his Mass. If he will not tell you, then the answer is no. If he says you must trust the SSPX, the answer is no. If he condemns you for asking, the answer is no. If you cannot speak to him directly but leave him a voicemail or send an email and he does not respond, the answer is no. If he says that he was conditionally ordained by one of the SSPX bishops, I would accept his word.