Hopefully anything that I just said even makes sense :p
Everything I said here could be wrong, but the point remains that, the problem can be vastly more complicated than the 2 source vs single source hypotheses.
What you say does not appear to make sense. Your post is just filled with confusion and speculation.
Lets us look at the facts.
The Epistle writers of the so-called Pauline Epistles place the apostles before him in Jerusalem.Galatians 1:17-18 &2.1
Neither went I up to Jerusalem to them which were apostles before me; but I went into Arabia, and returned again unto Damascus.
Then after three years I went up to Jerusalem to see Peter, and abode with him fifteen days.
Then fourteen years after I went up again to Jerusalem with Barnabas, and took Titus with me also.
The Epistle writer implied that the apostles were living in Jerusalem for at least 17 years.
Look at the Epistles to the Romans and Corinthians . The writer claimed he was going to Jerusalem to minister and give alms to the saints.
But now I go unto Jerusalem to minister unto the saints.
For it hath pleased them of Macedonia and Achaia to make a certain contribution for the poor saints which are at Jerusalem.
That I may be delivered from them that do not believe in Judaea; and that my service which I have for Jerusalem may be accepted of the saints
1 Corinthians 16:3
And when I come, whomsoever ye shall approve by your letters, them will I send to bring your liberality unto Jerusalem.
It is extremely clear that the so-called Paul writes about apostles and saints that were living in Jerusalem for at least 17 years during his supposed ministry.
But, now look at gMark [the short version].
Where do the apostles live in gMark? Who was the apostle Peter?
The author of gMark placed the apostles in Galilee and claimed the apostle Peter was a fisherman In Galilee.
Mark 1 16-20
Now as he walked by the sea of Galilee, he saw Simon and Andrew his brother casting a net into the sea: [for they were fishers.
17 And Jesus said unto them, Come ye after me, and I will make you to become fishers of men.
18 And straightway they forsook their nets, and followed him.
19 And when he had gone a little farther thence,[ he saw James the son of Zebedee, and John his brother, who also were in the ship mending their nets.
20 And straightway he called them: and they left their father Zebedee in the ship with the hired servants, and went after him
The author of gMark did not need the so-called Pauline Epistles at all for his story that the apostles were from Galilee and that Peter was a fisherman in the area.
In fact, in gMark, the apostle Peter is identified as a Galilean and it is claimed Peter spoke like a Galilean
And he denied it again. And a little after, they that stood by said again to Peter, Surely thou art one of them: for thou art a Galilaean, and thy speech agreeth thereto.
There is nothing at all about Jesus and the apostles living in Galilee in the Epistles.
The gMark author writes about the Galileans-- Jesus and the apostles.
The Epistles are about apostles and saints living in Jerusalem.
Further, in gMark, Jesus told the apostles that after he was resurrected that they should meet him in Galilee.
But after that I am risen, I will go before you into Galilee.
The earliest story of the Galileans, Jesus and the apostles, were not dependent upon the Epistles with stories about Peter, James and the apostles living in Jerusalem for at least 17 years.
In gMark, the Galileans, Jesus and the apostles, only went to Jerusalem to observe a Passover. Jesus was killed and the apostles fled. They were not living in Jerusalem for at least 17 years before the Passover.
Now, look at a map of the region.
gMark’s Galilean story is placed over 120 kilometers away from Jerusalem.
Galilee was part of the former kingdom of Israel whereas Jerusalem in the kingdom of Judah.
In fact it is claimed in gMatthew that the Galileans did go back to Galilee as promised and saw the resurrected Jesus.
Then the eleven disciples went away into Galilee, into a mountain where Jesus had appointed them.
GMark preceded the so-called Pauline Epistles since it was the later stories of Jesus and the apostles, like Gluke and Acts, that claimed the Galileans were staying in Jerusalem after the resurrection to get power to preach the Gospel.
And, behold, I send the promise of my Father upon you: but tarry ye in the city of Jerusalem, until ye be endued with power from on high.
The Pauline Epistles used Gluke and Acts of the Apostles to fabricate their stories that the Epistle writer met Peter and James in Jerusalem.