Where did you get these ideas? Did you come up with these theories on your own? It's impossible for me to comment on your thoughts point by point because there's no way for me to verify all that I would agree or disagree with. But I can say some things.
You wrote, "Daniel 12 speaks of 1290, and 1260 days remaining from the death of Jesus until He returns to rule from David's throne for 1000 years." It's been over 2000 years since the Crucifixion, which is a lot more time than 1290 + 1260 = 2550 days. Are you saying that Jesus has returned and is ruling on David's throne? Jesus is now sitting at the right hand of the Father as I understand it.
Matthew 24 is an exact foretelling of the Book of Revelation. My understanding is that the last week, the last 7 years, begins when Israel signs a peace treaty with 666. Then the beginning of sorrows commences. Matthew 24:4-8 - "And Jesus answered and said unto them, Take heed that no man deceive you. For many shall come in my name, saying, I am Christ; and shall deceive many. And ye shall hear of wars and rumours of wars: see that ye be not troubled: for all these things must come to pass, but the end is not yet. For nation shall rise against nation, and kingdom against kingdom: and there shall be famines, and pestilences, and earthquakes, in divers places. All these are the beginning of sorrows."
Matthew 24:9-14 - "Then shall they deliver you up to be afflicted, and shall kill you: and ye shall be hated of all nations for my name's sake. And then shall many be offended, and shall betray one another, and shall hate one another. And many false prophets shall rise, and shall deceive many. And because iniquity shall abound, the love of many shall wax cold. But he that shall endure unto the end, the same shall be saved. And this gospel of the kingdom shall be preached in all the world for a witness unto all nations; and then shall the end come."
The Scripture above occurs in the first 3 1/2 years of the tribulation period. The beginning of the Great Tribulation is foretold in Matthew 24:15 - "When ye therefore shall see the abomination of desolation, spoken of by Daniel the prophet, stand in the holy place, (whoso readeth, let him understand
". My understanding is the abomination of desolation is the image of the beast that people must worship or be killed. This ushers in the last 3 1/2 years of the 7 year period known as the last days when the worst horrors described in Revelation are unleashed. It's impossible to pinpoint exactly when the Rapture occurs, but it is described here: Matthew 24:29 - 31
"Immediately after the tribulation of those days shall the sun be darkened, and the moon shall not give her light, and the stars shall fall from heaven, and the powers of the heavens shall be shaken: And then shall appear the sign of the Son of man in heaven: and then shall all the tribes of the earth mourn, and they shall see the Son of man coming in the clouds of heaven with power and great glory. And he shall send his angels with a great sound of a trumpet, and they shall gather together his elect from the four winds, from one end of heaven to the other."
Again, I recommend Rosenthal's book, The Pre-Wrath Rapture of the Church, to delve more deeply into these matters. It's been a number of years since I read the book and I'm pointing out only a few of my thoughts about the end times.