To the OP - whats the thinking behind two pairs of scissors? Not a dig, but you could save some weight/space by just carrying the shears.
Would be worth getting a resusci-aid of sorts too for any first aid kit.
I've heard of the old LBV 40mm vest being used. Not the 'nam era m79 vest, but the 80s vest that attached to beltkit. Theres a picture on milphotos of a guy that set up his PLCE using the 40mm vest as a yoke and kept his beltkit the same.