Could still be a Kenobi right? Him calling out to her is strange and Ben had the saber longer then Vader and Luke combined.
No. It would require one of two situations:
1) Obi-Wan and Satine (for those who haven't watched Clone Wars, a woman he loved whom he would have left the order for if she had asked) had a secret lovechild before the Clone Wars began and who was completely hidden away for decades and simply never referenced by anyone anywhere ever (even the two of them, to each other while alone), which is completely ridiculous. It would also put waaaaaaaay too much emphasis on Clone Wars as a must-watch for any of this to make sense, and Clone Wars doesn't even remotely hint at their relationship going that far anyway. It's implied Obi-Wan never actually broke any rules (especially to the extent of fathering a child), and that if he would have, he would have instead left the Order first. He loved her and she loved him, but they never acted on it.
Scenario 2) After his "brother" destroyed the entire Jedi Order, in large part due to his relationship with Padmé, Obi-Wan, an extremely by-the-books Jedi, one of the very last of his kind, who had watched the only woman he ever loved get murdered right in front of him not too many years before, decided to abandon the teachings of the Jedi Order, get in on with some chick, and father a child who again was completely hidden away for decades and simply never referenced by anyone anywhere ever, which is again completely ridiculous, only more so because now the mysterious lover also completely disappears before A New Hope and is also never referenced again by anyone anywhere ever.
Neither scenario makes any sense, is highly inconsistent with what we've seen, and is terrible. As far the rest of your post, you're reeeeally stretching to form a connection. Yoda also reached out to her, and it's possible Maz had the saber longer than anyone. Obviously she's not "Rey Yoda-Kanata".