If Elizabeth conceived in the 1st week of the 4th Jewish month [after the course of Abijah which is the 12th week of the year] , then Mary conceived during the sixth month later or 1st week of the ninth month to the third week of the tenth month, which is between our Thnksgiving and Christmas.
Nine months later is last week of sixth month to third week of seventh month. This period covers Rosh Hashanna through the end of the Feast of Taberncles, as long as it wasn't a leap year. Birth on Rosh Hshanna [the first] seems most appropriate, with presentation in the Temple nine days later on or just before the Day of Atonement, and yet birth on the first day of the Feast of Tabernacles [the fifteenth] is also quite prophetic and appropriate. Both are possible from the timeline of Scriptures.
According to some historians in your links Jesus was born in the 41st year of Augustus who began reigning in 43BC [pointing to a 2BC birthdate], and yet others say 28 years after his victory over Cleopatra which occurred in 31 BC [pointing to a 3 BC birthdate].
While some say that Herod the Great died in 4 BC, Missler produced documentation saying that he actually died in 1 BC. That means a 3 BC or 2 BC date is acceptable.
The astrological chart showing that the Sun was in Virgo moon under the feet on Sept 11, Rosh Hashannah of 3 BC seems to be a clincher, if in fact that is true.
Since Jesus was not quite six months older than John the Baptist, and they both had to be thirty years old to start their ministries, and since John the Baptist had to have time to start his before baptising Jesus, Jesus may have started his ministry just before his 31st birthday, allowing John a full year and a half into his own.
If we have a 3 BC birthdate on Rosh Hashannah, then Rosh Hashannah of 26 AD is Jesus' 30th birthday. Let's say that being in no hurry, he waits a year to allow John to establish his ministry. Then begins just before Rosh Hoshannah of 27 AD, 15 years after Tiberius began to reign in 12 AD. Three and a half years later is Passover of 31 AD, which is often accepted as the date of the Crucifixion. But 31 AD doesn't work well for the 483 years from either of Artaxerxes' decrees.
But there is a third possibility -- that the decree to build and restore Jerusalem was issued sometime between the two decrees of 445 BC and 458 BC, at a median date of 453 BC. Since the first decree authorized Ezra to do as seemed right, giving him wide latitude, perhaps it was Ezra himself who after establishing the Temple, and checking the finances, actually authorized the building of Jerusalem. This might make more sense since Artaxerxes' first decree [458BC] would permit Ezra to legally make such a decision, and his second decree [445 BC] to Nehemiah almost assumes that the work of rebuilding Jerusalem had already begun, and Nehemiah wanted to return to build his own house.
Somewhere in history there could be and probably is a decree from Ezra or the elders or the Jewish governor of Judea around 453BC authorizing the building of Jerusalem with the funds left over from Artaxerxes' 458 BC decree.
That 453 BC decree is what we need to look for and I'll bet can be found somewhere. This would give us the following numbers for the fulfillment of Daniel 9: 24-27: 453 -1 + 31 = 483
Godspeed WK