Jesus made quite a few claims that are crystal clear on conversion and salvation, one would not need to be a "protestant" to believe those. I don't know how one can share a "private" interpretation with another person or how you can attribute a "private" interpretation with the millions/billions that have been saved in the last 2000 years. The 5 Solas were "reclaimed" from the corrupt Catholic church where the phrase, "when a coin in the coffer rings, a soul from purgatory springs" (among others). Surely you are aware of that, right ?