Assisting an Antiochian, Alexandrian or Byzantine Rite Mass celebrated by a priest in communion with the Seat of Peter is another option, if one is close to the area you will be visiting. They are every bit as Catholic as the Tridentine Latin Mass, unlike the the protestant novus ordo mass.
From what I know of SSPV, which is very little, they seem to be cult-like. I emailed them once about an inquiry, and their response gave me this impression, along with a little info I gathered from my limited research on them. Their Sacrament is certainly valid, but they will have issue with you receiving Communion if you are not SSPV. Considering their chapels are small, and everyone pretty much knows one another, or can recognize faces, they, and certainly the priest, will know you are from the "outside", therefore, the priest will probably deny you Communion.