Boost
Your boost setup should work as you needed to just Tee into line. Just make sure your connections are tight and secure away from headers or DP so they don't get burnt. Just ziptie them together then route them out of harms way. Is that a seperate oil filter inline for the turbo? The PVC shouldn't bother your vacuum numbers. There was a long long thread about to use or not to use a PVC valve. The consensus was to use it. Some choose not to. The problem is oil vapor gets sucked up into TB on some cars more then others some folks have no oil in intake, some decided to put an inline air/oil seperator between PVC and TB. to minimize contamination of intake. Most remove that connection between turbo and valve cover and others had expermented with teeing PVC valve into that hose keeping what oil mist that gets sucked in to just go back to engine rather then to TB that way the aircharge isn't contaminated with oil. If I had the old setup I'd probably give it a try for now I just empty the catch can.