Never mind

According to the manufacturer piston is .010" above a 9.578" deck.
According to your shop the measured deck height is 9.59
So initially you think it'll fit.... But... That is the flat area of the piston...
The quench dome is another .140 and is intended to be machined down for optimum quench clearance... To properly use those pistons requires the combustion chambers to be machined to equalize chamber depth... Then the domes are machined to equalize quench..

Just to add to this, open area of Mopar open chamber heads are usually around .100 deep...Normal head gaskets range from .021 to around .056, block deck heights can vary quite a bit... So KB provides a quench dome tall enough to handle all the variables...

If you have the skills to do the job properly you can achieve ideal quench... However when your done you'll still have hypereutectic pistons with all their issues... Honestly if your not gonna use the engine hard they are okay... But if your not gonna use the engine hard why chase ideal quench?