The Kingdom of Heaven in the Gospels specifically refers to the Millennial Reign of Jesus Christ on earth from Jerusalem and eventually the NHNE.
(the Gospel of the Kingdom)
The Church, The Bride of Christ, is heaven bound at the harpazo, when we meet the Lord "in the clouds".
I believe the local Church is a visible representation of the Kingdom of Christ or the Kingdom of God.
Some people insist that a Kingdom requires land but I am not suer.
Jesus Christ told us:
Luke 17:21Neither shall they say, Lo here! or, lo there! for, behold, the kingdom of God is within you.
A comparison of parables shows that the Kingdom of Heaven and Kingdom of God are the same!
The spirits/souls of those in the Church who die prior to the return of Jesus Christ in power and glory will be with Him in Heaven.
When He returns He will bring these Saints with Him to be joined with their resurrected bodies.
Those in the Church alive at that time will be changed {1 Corinthians 15:51ff}.
Following the Great White Throne Judgment the Church, the Bride of Jesus Christ which includes all the redeemed of all time, will dwell in the New Heavens and New Earth with the Triune God eternally.
I used to be a dispy, but no longer.
I read all of the Hal Lindsey books.
I even got through most of the Left Behind series.
Entertaining but not solidly Biblical.
Hal Lindsey made an attempt to tie Daniel, Ezekiel, other minor prophets, Revelation, and some of Paul's letters into a solid timeline, but it makes a lot of assumptions.
The "in the twinkling of an eye" verse could describe the Second Coming as easily as a Rapture.
I have read many arguments for the "come up hither" verse in Revelation 4:1, claiming that is the Rapture, because the churches are never mentioned again in Revelation.
Again, IMO, another opinion that reaches far into the imagination.
Not to change the subject of the local, visible church vs the Kingdom, but the modern day Church of Christ uses Romans 16:16 "the Churches of Christ salute you" as somehow having a connection to their strange denomination and doctrine.
They require baptism for salvation, and other weird ideas, and are closer to the SDA and RCC than us.
If a dispensationalist wants to write a serious book on eschatology I will respect that even though I will not agree.
However, a number of dispensationalists made a lot of money writing popular stories about the rapture and the grrreaat tribulation
Some still are.
Frankly I find that disgusting.
Especially bad are the Left Behind books for children!