Finger off the trigger
Cock the hammer
Rack the slide while maintaining trigger discipline
Engage thumb safety
Holster it or put it in a drawer
Without knowing much about you or your abilities, as @GRIZ mentioned, messing with spring rates is probably left to someone with some experience in a particular platform. Changing one will affect several other things. Looking at the firing pin stop would be what I would recommend as if the bottom is square as opposed to rounded or chamfered it will be harder to rack without cocking the hammer.
Additionally if you are not familiar with the platform a 1911 is not the pistol that I would recommend as a first timer's home defense firearm. A full sized 9mm striker fired pistol would generally be my recommendation. Glock is my personal preferred platform but they're not for everyone.
Yes, because it is not a shotgun nor a rifle.
Could the frame be assembled into a rifle from a new reciver and then legally brought in a state other then your residence because its no longer an other, it has become a rifle?
Is buying a used stripped lower in a different state different then buying an entire rifle?