I love that you have found a nice size, and that you are putting the time into getting it sorted. A few comments:
1. The thin rubber hose from the back of the manifold to the SAP is likely destroyed. I would replace.
2. I saw that you replaced a single o2 sensor above. Maybe a typo, but should always be replaced in pairs (and on your car their service life is 100k miles.
3. I am deeply concerned that you are cheaping out on parts. The only parts I can conceivably see buying from Amazon are Bosch o2 sensors, NGK plugs, and bulbs. Anything else is going to be Chinese garbage and cause serious heartache. Rockauto only for known items like brake pads.
It may sound fussy to say it, but the Chinese parts are absolutely garbage. Especially anything with a plug, which should always be replaced with OE or genuine (not OEM). For suspension parts, go with OE if you can find it (usually sachs or lemforder), Meyle if you can’t. The FCABs I see above look incredibly sketch.
Cooling hoses at this point may be only genuine that work at this point.
If you are buying Chinese electrical parts (MAF, O2 sensors, DISA) you are going to be frustrated.
FCPEuro is a solid supplier, as are Pelican Parts, ECS and EEuroparts. There are no sources of good parts with two day turnaround and free shipping. It is not a thing.