Looking for Info / Specs on Obsolete Mopar Piston

Just wanted to give an update on where I'm going with this engine refresh.
I talked to Jim at Racer Brown and he didn't recommend doing a custom grind cam to reduce the DCR. He said I needed to get the SCR down to about 9.5 for a street motor.
I talked to a local engine builder (Opel Engineering) that knows Mopar engines well. He said to bring in the pistons and he can machine the domes to achieve the desired compression.
Depending on how much the piston weight is reduced, he said you may have an "overbalance" condition and wouldn't need to rebalance the crank.
As I completed the teardown of the engine, there were two different head gaskets used, one side a 1008, the other a 8553PT.
With the current cam that is in the engine, I can achieve the following SCR / DCR combos:
Assuming the advertised 10.7cc dome volume.
Dome volume SCR DCR Head gskt Material removed from dome
-2.7 9.98 8.1 8553PT 8.0cc
0 9.98 8.1 1008 10.7​
Given the two choices above, is one preferred over the other? (remember these are open chamber heads).
What is the relationship between weight and cc volume for the forged pistons I have?
I'm trying to get an idea how much the piston weight will be reduced.
Would you do the crank rebalance?