Yes they install them all the same so @andy18_00 you will need a long pipe wrench or something similar to get the bottom of the shock to align with the mounting holes. I suggest using the bar pins to rotate them so you dont scratch up the shocks.
The biggest pain in the ass is the pressed in studs at the bottoms of the strut assemblies. They require you to pry the LCA's much further down to get the struts out. Removal would be much easier if they had used nuts and bolts as they do on the Ford Performance kit.
Does anyone else have two ghost notifications that won't go away and a new story from the Porsche Macan forum? Just want to make the admins aware if its not only me.
Yeah, I would only use it on the cast parts. I use Blaster Surface Shield (similar to Fluid Film) for my frame, but it is both a mess to apply and a mess if you ever need to work in surrounding areas as you mentioned. It does do a good job of keeping things rust free though...
I think it would be fine. May just make the differential covers harder to remove when its time to replace the gear oil. If you go around them with a razor blade first it should be similar though. Additionally, just make sure to mask off the rotors and any nearby electrical connectors first.
What @Porpoise Hork said is unfortunately correct. My dog tore up the top bit on one of my rear doors and replacing the entire card is the only option.