i don't think eliminting the booster is a good idea

i build brake training simulators at work
we use a vacum pump for the booster and if you leave the pump off you get maybe a 1/4 of the pressure than if the vacum was on

with the vacum on i have seen a few of the system reach around 2500 pounds of preasure and with no vacum barely reaching 500 pounds

if i was going to install those shocks i would have to find another way to install them or go with a different set of shocks