the vacuum lines, change over, cannister, check valve, sai are all part of the air induction system, same as ours. EVAP is for the fuel system. Only thing different on his car would be the secondary O2 sensors not being present and a ROW tune, otherwise it is the same as us spec. On RHD the location of a couple parts will just be different, but they will still be there such as the vacuum line to the fuel damper (on the right side of engine instead of left). The intake & vacuum system are all the same as US cars. EVAP is going to be at the front of the car like ours in the right wheel well.
You can get the row PET from here:
https://www.porsche.com/central-eastern-europe/en/accessoriesandservice/classic/genuineparts/originalpartscatalogue/
The vacuum cannister is circled in blue:
Threaded Mode
