piston recommendations??

had motor half apart decided to just motor build now to avoid tearing down agin in future, i plan on going with r&r rods, not sure on turbo looking for something in 800hp range, just got injectors back from exergy 60% over. looking at pistons now, not sure whats good, heard delipped lb7 pistons were great be alot cheaper than aftermarket mahle, any suggestions or opinions for a motor build would be great guys