Well there you go; bench bleed the master and yur done.
However, just because you cannot turn the front wheels with the brakes applied as you described, does not mean that they are working as designed; it only means, you can't turn them manually.
The calipers do not require much fluid pressure to accomplish that. the pads could be applying on a corner and still do that. And the pads could be bent, warped or installed wrong, hanging up, etc, and so, if you trust your ;
i know the new front calipers are working properly, even though the pedal isn't rock hard when i had my dad push on the brake pedal the front wheels cannot be turned, when the pedal is released they free spin.
you could be fooled.
C-clamping the pistons eliminates all that.
If you trust your diagnoses on that then OK, move on. But if you're wrong and you buy a new MC, with no change, well...............
