I'm trembling with all that clamping to granite in the kitchen! If I did that . . . when my wife was home . . . I'd be locked in the cold garage without the sour dough.
Those brake line mounts are very cool. I wish I needed some, but I'm past that stage.
And, you creatively solved the radiator drain problem that many of us had.
Nice work and thanks for posting it. Happy 2021.