You are lost in the woods!
This is not about the law saving.
>> “ It was the law of Moses that Christ came to finish/fulfil replacing it with His perfect sacrifice.” <<
You are deeply confused on all of this and you make Yeshua a liar with your assertions!
Torah never saved anyone, nor was it intended to do so. Torah is instruction in love and righteousness. It will not end until all of his elect are in the New Jerusalem, and the universe is gone. (Matthew 5) At that point his last feast, “the Last Great Day,” will have been fulfilled on his eighth day, the day of the new beginning.
All salvation will be by grace, from Adam to the end.
The man made laws of the Pharisees were the burden that oppressed Yeshua’s people, and he dedicated his life to demolishing every vestage of them. Every miracle he performed was centered on rejecting one of the man made laws.
His first miracle, at the Pharisee wedding, rejected the “washing of the hands.” He made wine in their hand washing pots.
Every miracle thereafter was aimed directly at one of the Takanot, until each of them had been destroyed. That was what Paul meant by “hanging them on the cross.”
That was why Paul was always dismayed when he found believers following the Takanot.
The false messianics today do the same errors; they wear Kippas, refuse to say the name of God, put on their shoes in the commanded order, and call their pastors Rabbi.
That was the source of the battle of words between “The Way International” and true messianics that reject such practices.
I’m sure they will all be impressed with your rituals and keeping of the law.