The wastegate diagram is just fine. EBC's don't need vacuum to operate, as they only control pressure with pressure. Taking the EBC boost source from the compressor will work just fine.
BOV should have it's own vacuum source (it only works on vacuum), and there is a drill bit , tap and nipple included in the kit for this. If you wish to tap your manifold in more places, you can just get another nipple with a 1/8" npt thread. These are available in all hardware stores and auto supply stores. Cost about $1ea.
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