S2K KID

I am replacing all of my black wire loom with the red kind. I need to know when the car is off is there still a vaccum? because my current hoses are being held on by just ring clamps. Also, how difficult is it to switch to the steel braided fuel lines with the anodized red couplings?
I need new ball joints and one cv boot replaced, so now is a good time to swap the current brake lines for stainless steel larger ones so the car is prepped for my brembo rotors and 4 piston calipers with KVR carbon pads.

If anyone wants to have their engine dressed a lil let me know, I will gladly do it if I have free time, just supply me the hoses and loom and give me 10 bucks.