Brother, I have the Part 2 out now (I've labeled it over in the other fork of the thread as [Part 2] to help everyone keep order). That goes over "only begotten." What you've said is very close. There is more to that term.

>You are not already saved
Note that "salvation" is not always about the lake of fire. Christ had spoken about the fall of the very real and present temple of the day. Notice in, Matthew 24, Christ tells the disciples that the temple will not have one stone left standing on top of another. The disciples then ask when that will be *and* when the end of the world will be *and* what will be the sign of his coming. (Keep in mind that the Revelation had yet to be given, and here's Christ saying the temple will fall and he'll come like a thief in the night. It was not--yet--evident to the disciples that the last day, Christ's return, would be a time much after the fall of that temple. We can see this by their questions.)

The temple fell some 40 years later.

Only after this did John receive the Revelation of things that must come to pass--revealing to us that the last day would be some time (from then) and not concurrent with the fall of the then-recently-fallen temple.

Apart from verses discussing what Christ accomplished and finished--the word "salvation" is often in verses akin to "Save yourself! Look after one another!" That is a salvation they could have *participated* in. Warn others. This temple is going to come down. Be vigilant. Something big is going to happen soon. (It did. Judea fell. The Judeans were dispersed for two millennia thereafter.)

Some salvation verses are about how Christ's death saved all Israelites (all under the law--whether Israelite Judeans or Israelite Samaritans or Israelite Hellenists (the "Greek" of "neither Greek nor Judean" fame) or Israelites dispersed far away since the Assyrians and Babylonians centuries ago who've even forgotten they were under the law). The death of the Husband saved the unfaithful Bride (Israel--meaning all Israelites, as listed above) from a deserved earthly death that would be according to their Vow (the law).

Some salvation verses are about the judgement / the reward. Saving up treasures, our reward, by our works. Saving our brothers and sisters from shame (when judgment of their works will come) by teaching them to help one another. (Our judgment will be consideration of how we treated the sheep. On the last day, the sheep and goats will be divided (also called the wheat and tares). The sheep will be judged by how they treated the least of these (the sheep), as we are called to "Love thy neighbor (one "near you," not geographical person) as yourself.")

We cannot add to nor take away from, complete nor leave incomplete, what Christ accomplished. He saved the descendants of Adam. The wheat. The children of the kingdom. The children of God. The body of Christ. He is the vine (Yahweh) and we are the branches (every one born from Adam, to whom was given a spirit by Yahweh). One cannot enter the kingdom of God unless he be born of above, of the water (flesh) and of the Spirit; what is flesh is flesh and what is Spirit is Spirit.
Please read 1 John 5. Note how "Christ came through water and blood" ( or "Came by water and blood" in some English translations; either is fine). That is not about baptism. That is about coming in the flesh as a descendant of Adam (water) and even more specifically as a descendant of Jacob, an Israelite (blood). Note how the chapter even speaks of being "born of God."
There isn't a "born again." The Greek is "born of above."

Those not planted by God but by another--the tares--the children of the wicked one--the works of the devil--and even the devil and his angels--will be thrown into the lake of fire to be no more.

In Genesis, in the beginning, there are two trees. At the end of Revelation, after the the tares are thrown into lake of fire, there is one.