I'm looking to install stainless steel brake lines on all four corners of an '04 SVT. I'm guessing its a messy procedure. When I remove the line from the caliper, as well as from the hard metal lines, I'm assuming the fluid will start running out and I need a catch can for it, right? Or does the vacuum in the reservoir/master cylinder hold most of it back? I do plan to completely bleed and flush when everything is hooked back up.